Account locked from adding checking account

I was promised $50 for 1gb speeds and I'm stuck paying $60+ because my account is locked from being able to add a checking account for autopay. I messed up adding the account the first time and now its locked for 6 months? Just let me fix it and be on my way! Yes I've tried all the tricks and work arounds. I've called customer service multiple times and they all tell me I'm just hosed for 6 months. I'm not impressed at all. I would love if SOMEONE, ANYONE was able to release the lock on my account and let me get the advertised deal that I SIGNED UP FOR initially.