Bonitas Medical Aid - Severe Incompetency

My monthly Bonitas membership fee was now deducted twice on 28 July, because they now say they received my payment for May month too late (they did not tell me when they received it that it was too late). Bonitas received my May payment too late, because I waited for them to deduct the membership fee as arranged with them, with a debit order from my bank. I didn't want to make a payment, because I was afraid that I will make a payment and they will also deduct the amount from my bank account. And now what I predicted, has happened. I send my initial request form to change the debit order from salary to my bank, on 18 March 2025. This wasn't put in place and I had to pay the membership fee for April into Bonitas's bank account. End May again the debit order didn't go off, but I didn't realise it and on 12 June 2025, I got a request to update my bank details again. I didn't want to make the payment because I felt they had to deduct it as arranged, but I payed the fee on 25 June. My bank details was finally updated on Bonitas's side on 26/6/2025 due to insufficiency on Bonitas's side. It was too late for the deduction for June month, so again I had to pay the membership fee for June. Each time I send an email with proof of deposit and each time I received and email to say Bonitas received my membership fee. If the membership fee was deducted from my bank account from the start, this mess would not have happened. Bonitas owe me one month's membership fee, because 2 x R5 439 (one month's membership) was deducted from my bank account.