diff --git a/src/payments/model_payment_request.go b/src/payments/model_payment_request.go
index 932ce271a..220e4df96 100644
--- a/src/payments/model_payment_request.go
+++ b/src/payments/model_payment_request.go
@@ -2016,7 +2016,7 @@ func (o *PaymentRequest) isValidEntityType() bool {
 	return false
 }
 func (o *PaymentRequest) isValidFundingSource() bool {
-	var allowedEnumValues = []string{"debit"}
+	var allowedEnumValues = []string{"credit", "debit"}
 	for _, allowed := range allowedEnumValues {
 		if o.GetFundingSource() == allowed {
 			return true
diff --git a/src/payments/model_response_additional_data_domestic_error.go b/src/payments/model_response_additional_data_domestic_error.go
new file mode 100644
index 000000000..31b6e8617
--- /dev/null
+++ b/src/payments/model_response_additional_data_domestic_error.go
@@ -0,0 +1,162 @@
+/*
+Adyen Payment API
+
+API version: 68
+*/
+
+// Code generated by OpenAPI Generator (https://openapi-generator.tech); DO NOT EDIT.
+
+package payments
+
+import (
+	"encoding/json"
+
+	"github.com/adyen/adyen-go-api-library/v8/src/common"
+)
+
+// checks if the ResponseAdditionalDataDomesticError type satisfies the MappedNullable interface at compile time
+var _ common.MappedNullable = &ResponseAdditionalDataDomesticError{}
+
+// ResponseAdditionalDataDomesticError struct for ResponseAdditionalDataDomesticError
+type ResponseAdditionalDataDomesticError struct {
+	// The reason the transaction was declined, given by the local issuer.  Currently available for merchants in Japan.
+	DomesticRefusalReasonRaw *string `json:"domesticRefusalReasonRaw,omitempty"`
+	// The action the shopper should take, in a local language.  Currently available in Japanese, for merchants in Japan.
+	DomesticShopperAdvice *string `json:"domesticShopperAdvice,omitempty"`
+}
+
+// NewResponseAdditionalDataDomesticError instantiates a new ResponseAdditionalDataDomesticError object
+// This constructor will assign default values to properties that have it defined,
+// and makes sure properties required by API are set, but the set of arguments
+// will change when the set of required properties is changed
+func NewResponseAdditionalDataDomesticError() *ResponseAdditionalDataDomesticError {
+	this := ResponseAdditionalDataDomesticError{}
+	return &this
+}
+
+// NewResponseAdditionalDataDomesticErrorWithDefaults instantiates a new ResponseAdditionalDataDomesticError object
+// This constructor will only assign default values to properties that have it defined,
+// but it doesn't guarantee that properties required by API are set
+func NewResponseAdditionalDataDomesticErrorWithDefaults() *ResponseAdditionalDataDomesticError {
+	this := ResponseAdditionalDataDomesticError{}
+	return &this
+}
+
+// GetDomesticRefusalReasonRaw returns the DomesticRefusalReasonRaw field value if set, zero value otherwise.
+func (o *ResponseAdditionalDataDomesticError) GetDomesticRefusalReasonRaw() string {
+	if o == nil || common.IsNil(o.DomesticRefusalReasonRaw) {
+		var ret string
+		return ret
+	}
+	return *o.DomesticRefusalReasonRaw
+}
+
+// GetDomesticRefusalReasonRawOk returns a tuple with the DomesticRefusalReasonRaw field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *ResponseAdditionalDataDomesticError) GetDomesticRefusalReasonRawOk() (*string, bool) {
+	if o == nil || common.IsNil(o.DomesticRefusalReasonRaw) {
+		return nil, false
+	}
+	return o.DomesticRefusalReasonRaw, true
+}
+
+// HasDomesticRefusalReasonRaw returns a boolean if a field has been set.
+func (o *ResponseAdditionalDataDomesticError) HasDomesticRefusalReasonRaw() bool {
+	if o != nil && !common.IsNil(o.DomesticRefusalReasonRaw) {
+		return true
+	}
+
+	return false
+}
+
+// SetDomesticRefusalReasonRaw gets a reference to the given string and assigns it to the DomesticRefusalReasonRaw field.
+func (o *ResponseAdditionalDataDomesticError) SetDomesticRefusalReasonRaw(v string) {
+	o.DomesticRefusalReasonRaw = &v
+}
+
+// GetDomesticShopperAdvice returns the DomesticShopperAdvice field value if set, zero value otherwise.
+func (o *ResponseAdditionalDataDomesticError) GetDomesticShopperAdvice() string {
+	if o == nil || common.IsNil(o.DomesticShopperAdvice) {
+		var ret string
+		return ret
+	}
+	return *o.DomesticShopperAdvice
+}
+
+// GetDomesticShopperAdviceOk returns a tuple with the DomesticShopperAdvice field value if set, nil otherwise
+// and a boolean to check if the value has been set.
+func (o *ResponseAdditionalDataDomesticError) GetDomesticShopperAdviceOk() (*string, bool) {
+	if o == nil || common.IsNil(o.DomesticShopperAdvice) {
+		return nil, false
+	}
+	return o.DomesticShopperAdvice, true
+}
+
+// HasDomesticShopperAdvice returns a boolean if a field has been set.
+func (o *ResponseAdditionalDataDomesticError) HasDomesticShopperAdvice() bool {
+	if o != nil && !common.IsNil(o.DomesticShopperAdvice) {
+		return true
+	}
+
+	return false
+}
+
+// SetDomesticShopperAdvice gets a reference to the given string and assigns it to the DomesticShopperAdvice field.
+func (o *ResponseAdditionalDataDomesticError) SetDomesticShopperAdvice(v string) {
+	o.DomesticShopperAdvice = &v
+}
+
+func (o ResponseAdditionalDataDomesticError) MarshalJSON() ([]byte, error) {
+	toSerialize, err := o.ToMap()
+	if err != nil {
+		return []byte{}, err
+	}
+	return json.Marshal(toSerialize)
+}
+
+func (o ResponseAdditionalDataDomesticError) ToMap() (map[string]interface{}, error) {
+	toSerialize := map[string]interface{}{}
+	if !common.IsNil(o.DomesticRefusalReasonRaw) {
+		toSerialize["domesticRefusalReasonRaw"] = o.DomesticRefusalReasonRaw
+	}
+	if !common.IsNil(o.DomesticShopperAdvice) {
+		toSerialize["domesticShopperAdvice"] = o.DomesticShopperAdvice
+	}
+	return toSerialize, nil
+}
+
+type NullableResponseAdditionalDataDomesticError struct {
+	value *ResponseAdditionalDataDomesticError
+	isSet bool
+}
+
+func (v NullableResponseAdditionalDataDomesticError) Get() *ResponseAdditionalDataDomesticError {
+	return v.value
+}
+
+func (v *NullableResponseAdditionalDataDomesticError) Set(val *ResponseAdditionalDataDomesticError) {
+	v.value = val
+	v.isSet = true
+}
+
+func (v NullableResponseAdditionalDataDomesticError) IsSet() bool {
+	return v.isSet
+}
+
+func (v *NullableResponseAdditionalDataDomesticError) Unset() {
+	v.value = nil
+	v.isSet = false
+}
+
+func NewNullableResponseAdditionalDataDomesticError(val *ResponseAdditionalDataDomesticError) *NullableResponseAdditionalDataDomesticError {
+	return &NullableResponseAdditionalDataDomesticError{value: val, isSet: true}
+}
+
+func (v NullableResponseAdditionalDataDomesticError) MarshalJSON() ([]byte, error) {
+	return json.Marshal(v.value)
+}
+
+func (v *NullableResponseAdditionalDataDomesticError) UnmarshalJSON(src []byte) error {
+	v.isSet = true
+	return json.Unmarshal(src, &v.value)
+}
diff --git a/src/payments/model_split.go b/src/payments/model_split.go
index b9a006aa2..d1fa93acf 100644
--- a/src/payments/model_split.go
+++ b/src/payments/model_split.go
@@ -24,7 +24,7 @@ type Split struct {
 	Amount  *SplitAmount `json:"amount,omitempty"`
 	// Your description for the split item.
 	Description *string `json:"description,omitempty"`
-	// Your reference for the split item.  This is required if `type` is **MarketPlace** ([Classic Platforms integration](https://docs.adyen.com/marketplaces-and-platforms/classic)) or **BalanceAccount** ([Balance Platform](https://docs.adyen.com/marketplaces-and-platforms)). For the other types, we also recommend sending a reference so you can reconcile the split and the associated payment in the transaction overview and in the reports.
+	// Your unique reference for the split item.  This is required if `type` is **MarketPlace** ([Classic Platforms integration](https://docs.adyen.com/marketplaces-and-platforms/classic)) or **BalanceAccount** ([Balance Platform](https://docs.adyen.com/marketplaces-and-platforms)).  For the other types, we also recommend providing a **unique** reference so you can reconcile the split and the associated payment in the transaction overview and in the reports.
 	Reference *string `json:"reference,omitempty"`
 	// The type of the split item.  Possible values:  * [Classic Platforms integration](https://docs.adyen.com/marketplaces-and-platforms/classic): **Commission**, **Default**, **Marketplace**, **PaymentFee**, **VAT**. * [Balance Platform](https://docs.adyen.com/marketplaces-and-platforms): **BalanceAccount**, **Commission**, **Default**, **PaymentFee**, **Remainder**, **Surcharge**, **Tip**, **VAT**.
 	Type string `json:"type"`