As allways Useless Service from MTN

1 star rating is toooo good. For past 5years trying to get them to change my email adress for my invoices and statements. They cant het that right. They debit my account as and when they feel like. I dont even know what for as they dont send me invoices. Also several times requested to change debit order date. But thats also they iseless. Im about to cancel my last remaining contract with them because of this.