Shocking service and apathy in 21st Century

The South African Service industry generally is poor, but Telkom must be the worst. I received an account for R2576.12 for what should have been R599.00. This I disputed with them on 14/8/2020 ref ***3 and they still debited my account with the full amount. I have been on their 10210 number several times since 10:00 this morning asking for resolution or a supervisor. Zero response and find out on the last call at 16:24 supervisor left at 16;00 and I must phone again tomorrow. Pathetic service for one of the most expensive data providers worldwide. Their stores are as bad with queues standing over 2 hours.