Poor customer service and value towards your client

I would to escalate the incompetency level I received from calling discovery customer care.First incident: I contact customer care on the 17 May 2018 and requested for my debit date to be changed from the 1st to the 10th of each month, that was done however I was not advised that I will be double debited because I always pay my premiums after usage, attempt of debiting R 6,340 went through but it was not successful because I only had enough money for only one premium. Consultant I spoke to was Charldene. 2nd attempt to resolve the matter I spoke to Charledene who promised that they will listen to the call recording and revert to me with the feedback, that was not done 3rd attempt I called and spoke to Noluthando and I requested for the Team Leader and I was transferred to Roxanne Kannemeyer who listen to the recording and acknowledge that the consultant provided incomplete solution, she escalated the matter to credit department because I wanted a refund for the bank charges. A confirmation was sent confirming that the bank charges will be refunded within 5-7 working days to date I have not received that money. I made a manual payment for the outstanding premium and submitted the proof of payment on the same date.4th attempt I called on the 26/06/2018 to confirm if the debit date was changed accordingly and how much will be debited. Vuvu confirmed that R3,170 however on the 01 /07/2018 R6340 was debited, again I did not budget for that amount, attached bank statement will prove that for you when you look at my premium escalation history. 5th attempt I called again on the 03/07/2018 and spoke to Bulelwa who promise to escalate the matter to credit department and to date I have received any feedback. Instead I received an e-mail confirming that my membership is suspended. Bulelwa called back on the 05/07/2018 confirming that Cindy from Credit department is not available. I requested to speak to a Team Leader and she confirm that her Team Leader was not available. I requested to speak to a manager and I waited for 30 minutes without any assistance. I requested to be transferred to someone who can assist that did not happen. Last contact I sent an e-mail to the principal officer on 09/07/2018 and to date I have not received any acknowledgement instead the next day I received a call from Roxanne Kannemeyer who promised to follow up on the matter however to date I have not receive resolution nor feedback I must say I am very disgusted with discovery level of service and how quick you are to suspend the premium yet how difficult it is to get decent customer service I hope I will received immediately feedback and I expect both bank charges to be refunded with 5-7 working days.