When was the account banned and when did you sent thwm your request? Recoverig accounts take much more time than you can expect, I think it can ake up to 2 weeks. Also the banned situation of your account doesn't help at all.

It will be more convinient if you could post the username here so we can see if the account was really hacked and for whatever reason the account was banned.

The only way you can ge the account back is if you can prove that it was hacked and a signed message that the account is really yours.