Poor customer service 🚮🚮🚮🚮

Terrible customer service, I am soo disappointed! I accidentally paid the wrong amount for my service. I then called them to arrange a refund, this consultant I spoke to told me the refund would reflect in my bank account within 7 working days. On the 12th working day I called to follow up, only to find out that nothing had been done. I was told that now it would take 72 hours. I called again this morning and still nothing has been done! I have since requested to speak to a manager or supervisor. I was told that someone would call me back, still nothing. Wow!!