Mweb customer service

Hi, trying to cancel my Mweb fibre line since 01 Feb with no success. I have called daily (waiting hours on hold), tried the website chat with no response, and received 3 ref. numbers confirming a call back - but no calls received in past 15 days. If anyone works at Mweb or is able to assist/escalate this, I would really appreciate it. 🙏