Charged but did not send an activation code

[Xin-Dai]

Bought a year of global package, used 7 days later, the middle days did not use. When I opened the client, I found that I was not logged in, and when I entered the activation code, it showed that the payment for the subscription corresponding to the activation code was overdue, and I didn't log in from another computer, so what's the situation, and does anyone know how to solve it? I sent an email to customer service for 5 days without any response.