MWEB LTE TOP UP.....BE CAUTIOUS

On Thursday 14 March I noticed my allocation of data on MWEB LTE was about to rum out. Accordingly I purchased a top-up of 20GB for R250. On Friday I checked my useage and found that MWEB had conflicting reports on their user portal. One report showed that I had received a total of 120 GB of which 117.3 GB was used up. The other report showed that I had received 140 GB of which 137.73 GB was used up. IMy useage report for the month at that stage showed I had used up 120.450 GB. Accordingly on Friday I should have had a balance of 19.55 GB.... I discussed this with am MWEB Service Desk advisor who advised me the matter would be escalated as it was clear that a system error was incorrectly reflecting the balance. I am now at Monday evening without the Data that I paid for and MWEB saying they have escalated. They did offer me the opprtunity to purchase a further Top Up which I have declined as I do not trust their system which will probable gobble up my money once more. Can MWEB either refund me and cancel my contract without penalties for non-performance of fix up the problem. Their reference number is MWB ********** 1