********* business practice

I hired a car with Bluu rentals using my discovery debit card from the 5th to 10th December ( R 5720.00payment ref VT6MCQ) reserved- had to extend rental and total reserved on card was ( R3905 payment ref NRR0OT- and there after we did another extension for R7810 payment ref OKK8Q0 and final amount was R 1956.12 payment ref NT6Q6R- these payments and ref were sent to me and discovery bank by the rental company- The car was returned in good condition on the 26th December 2022. On the 3rd of January 2023- The car hiring company ( Bluu) debited my account for R19373.11- To my knowledge the R19373.11 is the total of all the amounts that were supposedly reserved on my Discovery bank card and that discovery would then release the funds and balance the amount requested by Bluu. After a week on noting that the R19373.11 had not been cANCELLED- I contacted discovery and I was sent from one consutlant to another, one manger to another and the issue was not resolved- finally on the19th January I was asked to fill in a dispute form so that discovery would contact the rental company on my behalf- I was then told that the merchant banks with FNB and they will release the funds to discovery then discovery will release the funds and balance my account out- I trusted and waited, but now yesterday was the 3rd of january and I called discovery and after being bounced around between managers and consultants they finally tell me that Discovery did not reserve the funds as per the transactions and SMS notifications that were being sent to me whenever I made a payment to the rental company. As far as I know the rental companies put a hold on the amounts so that we dont spend the funds until we get final statements. This was not the case and now I am expected to pay R19373.11- to top it all of, I requested my transactions list statement and none of these amounts are reflecting on there, but I was receiving SMS notifications from Discovery every time. Now you tell me how this works and why am I being held accountable. for something I was not aware of. Also I do not have an overdraft or any sort of credit with discovery bank but now I am sitting with a negative balance for an amount that I thought was being taken care of. I am really disgusted and very disappointed by how this issue is bieng handled. And I am 100% sure i will not refer anyone to bank or use any of your products and I want my account with you cancelled. I want answers for how that all these transactions went off my account and why you felt its OK to pay the rental company money from my account, when the balance is zero.