Horrible Service!

Ive had the worst experience with my business account with FNB as no one seems to want to help me. A transaction i made in february was only banked by a merchant 2 months later, this left my account in areas, ive filled in forms and no one seems to be in the mood to assist me. im being told someone will get back to me in 21 days however my account is now being handed over, how when i still have a pending matter, i will not rest till this is fixed.