Will never ever make use of Thrifty Car Rental again !!!!!!

We always rent a car when we fly up to my children in Johannesburg, we make use off different rental companies, this time i said to my husband lets try Thrifty what a disappointment. First we booked a car and pay for it when we arrived 21H00 that night in JHB and went to them we waiting about 20 minutes before we was helped, one gentlemen was busy with a new client and the other one was just sitting around and told us we must wait the other one will help us. After 20 minutes the same gentlemen that said we must wait come to the counter and ask if he can help us. My booking was done on the 1st of April and payment was made the same day the day of the rental was for the 11th of April. Then the gentlemen told me there is no payment did i bring my payment notification, i said no because the e-mail i received said that i must print my voucher and take with. After how long they took my deposit of my credit card that i know we are responsible for,. We took the car back the 14th at 14H00 nothing wrong with it and refill of fuel. On the 23th nine days after my rental my deposit is still on hold i try to phone their number just ringing and then cutting out. I have send a e-mail to their customer care with my complain and they only reply back on the 25th with a mail and ask their refund department to assist with it. Until now the 26th now reply or answer from them or releasing of my money after 11 days of giving back the car as giving no damages really can it take so long for checking the car and release the funds. All other car rental companies that we made use off after 2 days your money is back in your account. There is no way that i will ever make use of Thrifty Car Rental again !!!!!!!!!!!!!!!!!!!!!!!!!