Debit on the wrong date

I've called the Telkom call centre today and spoke to a consultant name Thabo and i advised him of the issue i have with Telkom and with them debiting my account on the incorrect date. Thabo mentioned it is a system error and there is nothing he can do. I mentioned to him that i have money in my account and for them to debit my account because i do not want my ITC to decrease. He mentioned there is nothing he can do. When i asked for a manager Timmy came online to assist and his response is \ That is unfortunate". Why must i be inconvenienced by taking time off from work and going to the bank and depositing money when Telkom cannot do their jobs. That is really bad service provided from a large company. I am very disappointed and a very unhappy customer."""