Deposit not paid after 3 weeks of rental

I don’t know what’s wrong with AVIS but hey we really experiencing bad service.

My mom rented a car (***) and 3 weeks later still no deposit paid. We have been in contact with Avis Customer Service, mailed bank statement, contact Standard Bank regarding the amount but still nothing. The only thing we getting from Avis is “the deposit won’t reflect on the bank statement due to it was not debited but frozen”. We sent proof that the deposit was debited and if the deposit was returned we will be able to see an increase on our balance.

After 3 weeks, we still waiting for the deposit. I’m very much disappointed with the service???? Avis is one of the best car rental companies I knew.