bad service loosing data and money because of something thats their fault

last week i went to cell c welkom where i was informed that there is no more lte services in welkom and the only thing that can be done isnti cancel the contracts so after phoning your customer services 7 times i asked that if whe can change this to the data share option they said its fine but its going to take anywhere from 24 to 72 hours. im really ****ed at the lack of service im getting. im losing almost 30g of data and now i have to buy data untill you sort this out... i have 4 contracts with cellc and really feel if this is how u treat customers to go ofer tovodacom because i cant understand that something that is your fault is costing me so much.