diff --git a/lib/source/polkadotV0-source.js b/lib/source/polkadotV0-source.js
index 73a15f0666..bab304d5ae 100644
--- a/lib/source/polkadotV0-source.js
+++ b/lib/source/polkadotV0-source.js
@@ -164,11 +164,6 @@ class polkadotAPI {
     )
   }
 
-  // TODO: implement!
-  async getExpectedReturns() {
-    return 0
-  }
-
   async getSelfStake(validator) {
     return validator.selfStake
   }
@@ -180,12 +175,12 @@ class polkadotAPI {
     return this.reducers.balanceReducer(this.network, freeBalance.toString())
   }
 
-  async getRewards(delegatorAddress) {
-    const api = await this.getAPI()
-    const rewards = api.derive.staking.stakerRewards(delegatorAddress)
-    // currently not working. It always returns []
-    console.log('REWARDS', rewards)
-    return rewards
+  async getExpectedReturns() {
+    return null
+  }
+
+  async getRewards() {
+    return null
   }
 
   async getOverview(delegatorAddress) {