Telkom very incompent and poor systems

Telkom has slow systems to update information of their customers and it is inconveniencing the customers. I had an amount that i had to pay mid June and they had cut all my contract sim cards, i then paid the amount on the 19th June 2021. But because their systems are not updated regularly the deducted the same amount on the 25th June 2021. I call them on the 28th June 2021 for a refund and i was told i will be refunded within 7 -10 working days. To date my money has not been paid back as yet. When you owe them they harass me with sms and calls. I have not paid my debts because they decided to deduct after i have paid already, i have to be the one doing the follow up as they are the ones owing me, using my time and airtime to follow up. I am disappointed and in areas in some of my debts because of Telkom incompetence.