unsatisfactory service

I owed virgin active R399 which happened after I froze my contract due to some financial problem which I spoke to the gym consultant about and advised me to switch the contract payment to my father's so he could be able to settle the amount because he was working by then,now in December 2015 my dad received a call from the MBD attorneys threatening to take him to the court of law if he can't settle the amount of R600 concerning the gym contract, my dad decided not to pay hence he knows that we froze the membership for awhile and haven't been to the gym ever since. 3 weeks back they called again saying my dad owes R1500 which they immediately deducted R500 from his aaccount without his permission as he is now jobless...i took matters into my own hands as im the one who opened the gym account with them,I went to the nearest virgin active to consult about this matter and the lady who helped me even accessed my contract which showed my total owing of only R399,she gave me the MBD number which i immediately contacted and spoke to the woman who couldn't help me about this information due to an outstanding balance of R600 which I still have to settle before this month end..Please help