Really Bad service

I app**** for a LTE-A 55 GB double deal of 110 GB on Saturday, 25 Nov through a field sales agent called Deborah Kayembe. I was initially pleased that my family internet connection needs will be fulfilled. Till today, the application is still pending. On Monday, 27th November, I requested the contract change from 24 months to month to month sim contract to ensure it is captured. After numeous follow ups, I am told that I missed the double special deal that expired end of November and I will have to reapply for the month to month sim only contract, but will forfeit the double deal special by only getting 55 GB instead of 110 GB which I originally app**** for. I queried this as I specifically app**** for this special before end of Nov, however I have let down and disappointed by Deborah and Theola Moodley that did not rectify this application on time. I have tried multiple internal escalations through Monica, Rea and Bryandon Mac requesting them to consider arranging with management to offer me the double-deal as it is not my fault that Deborah did not change this contract in time before end of Nov. This is my first experience with Vox Telecom to try do business with them and yet I have experienced very bad service and find it very disappointing that this is how they treat the new potential customer. I need this case to be escalated to the Executive level to address please as I have now lost my patience trying to simply get customer get customer service since 24 Nov until today 18 Dec with no progress made. I