Multiple unauthorised debit orders

In June 2018 the amount of R3756 was debited from my account unauthorised instead of only R1500that is arranged and reversed afteribattled for it for four days. In July 2018 again three unauthoriseddebit orders went through flying like a rocket, R3756 was debited and R1500.01 and also R756.31whichirequested for a reversal on the 30th July 2018 before 12h00 but nothing was refunded back to my account untilt oday the 04th August 2018 nothing has been refunded back to my account. Is tis what FNB is giving it's customers as a service and they claim to be the best bank in SA, my banking needs will probably be VALUED elsewhere and i will never recomend any of my friends and family member to go and experience poor service and HIGH banking charges. Now i feel like have been used like a female DOG.