FEED UP OF PATHETIC SERVICES

I have now for three months been trying to change my banking details for my two data sim cards, i had called them just over three months ago to advise i cannot access my then banking app and had to get another bank account, i tried changing the details but got told it must be three months in use. I advised them i am doing the right thing and trying to change the relevant information but they have refused, with that they are charging me R202 fee for a failed debit order and then services got suspended, i had paid that fee, next month again same story they refuse to change my banking details. i had then told them i refuse to pay the failed debit order fee as they are not allowing me as the customer to do the right thing yet the subcription fee is being paid every month. Every month i am requesting someine in management to call me back with this regard and yet i am still waiting - now once again my subscription is suspended but the contract is paid. *** today when i call i am still waiting on someone to call me and all of a sudden there is a issue with changing banking details on their side. I do not think this is fair treatment to your customers at all. Either they remove this failed debit order fee OFF my account and reconnect my two sim cards or i will have to go to another network that is willing to treat their customers with dignity.