CellC LTE lack of sales info on sign up to contract

The LTE contract supp**** by above company is the worse ever. Cuts off 4 x a day. After Technical dept. Helped to change to Vodacom towers, Which should have been informed to the customer, another small glitch on their top up program arose. The Sim no of the LTE is not recognized on their top ups for data, although the number is visible for orders. The outcome is that all the money spent on data top up goes to the cellphones and then you are short on the LTE data so they cut you off! Finally, after many written complaints it appears that if under contract, customers must call in to request extra data. Would have been much easier if we were informed of this when we signed up.