Why am I getting an email saying my account is almost full when I upgraded my plan in Feburary?

I checked your account and I can see that you are subscribed to the Bronze yearly plan. I also checked our mail logs and I did see that an email was sent to you regarding the "10 payments per month for Free accounts". This email might just be a temporary glitch in the system. You are subscribed to Bronze so you do not need to worry about your account being full. No further action is needed.

Apologies for the inconvenience.
Regards.