Pathetic CellC

Been having problems with CellC since November 2018. Both my husband and I have several phone and data contracts for several years. Now CellC switch over to using MTN towers we can't use it. No MTN signal. CellC send someone to our farm to check whether a booster will help, but according to CellC tech. not even a booster will help, that was March, still waiting for CellC to exempt us from contracts we now can't use due to their switch.