No LTE reception after 9 days

I took out a cell c LTE contract on the 12th of April, it worked until 21st of April, I repeatedly called customer care to be told technical staff are on strike... eventually a lady from tech called me on the 1st of may, she told me that LTE roaming has been canceled in my area and that I should return the unit back to my store. On returning the unit 2nd of may , I was told I cannot cancel my contract until a technical person has been to my house to check network... I have so far lost my 71gb of data I had left over, I subsequent took out a telkom LTE contract which is more expensive than cell c cause I cannot run my company office.. I have requested the recorded call from cell c which they can only give the recordings to the store, basically the store made me out as I am not talking the truth. Please I need to cancel this contract.