AVIS is debiting my account with amounts that do not reflect on invoice. Query remains unresolved. This is ******* and in contravention of my agreement with AVIS. Please contact me urgently

I have called the call centre 3 times today 29 April 2020. The call drops after "Please have your rental agreement number ready". I have e-mailed AVIS '***' on 29 April, 26 and 25 April with my query remaining unresolved. The amounts debited willy nilly by AVIS on my cheque account does not correspond with the invoices from AVIS. This is appalling and unacceptable. Your call centre is useless, and cannot take calls. Renter Fatima Bagaria. Please contact me urgently to resolve.