Rewards question

Some month ago, aybe 7 or 8 month i gave my account to a friend because i wasnt playing and he got a 15 days ban and afterwards rewards ban(i know thats my problem i shouldt give my account) the pint is that im playing again and after 1 or 2 month of playing im still banned form rewards, my question is, will i be unbanned sometimes?

By the way, when i play with friend i get rewards dont know why.