INCONVENIENCE

I hired a vehicle on the 17th and returned it on the 18th of June. Avis held my funds as per their process. I now cannot access my funds because Im told that Avis has sent a message today the 22nd to Standard Bank card division to release my funds. When I contact my bank, they advised that AVIS should contact them telephonically to urgently release the rest of my funds, however AVIS tells me they DONT contact the bank as they have already sent the message. Avis bill is R645-33 AND I have about R1400 in my acc. I now cannot access the rest of my funds, until AVIS as a merchant, contacts standard bank card division telephonically to urgently facilitate this. The message was only sent to standard bank after I had been inconvenience by my funds being held up. All I need is for avis to contact standard bank to release the rest of my funds after deducting what I owe to them. All I am getting is a lecture on their process which does not help me.