Disgusting Service and Refund witholding

After being deducted for TWO lines that was NOT canceled on Mweb's side (as was requested) for months, it is now IMPOSSIBLE to get the refund promised in September 2025 (an amount upwards of 17k). Being promised and passed from pillar to post with no way to get in contact with a senior representative or senior management to resolve this. It is disgusting that this business is willing to take unauthorised money for years, yet give months worth of promises to refund and never do so. Disgusting!!!! How do you reach a person of seniority in Mweb to resolve refunds?? Multiple reference numbers were given across multiple calls over multiple months, with service agent names, dates and call times - still this will not be resolved