Cell c contracts with no services

Good day

I have a data contract with a pocket router from cell c. Since the 2nd of August I have been experiencing the problem of the pocket router keeps asking me tonsign in to the network and has lost internet connections. After 5 calls logged and explaining to the technical department no feed back and no resolution. So every time I log a call they just close it after a week no resolution. So I get 40gb of data a month, since I can't use my data as to having to sign in every 30min, the data builded up and cell c is limiting the client to only 60gb, resulting in me losing 30gb of data and still having to pay for a service they can't provide. The cell c shop that i took out the contract is telling me that cell c has canceled the roaming contract to ***gyback on other network provider towers. They also explained that if Cell c is not able to provide the service they gave me when I took out the contract that they must cancel the contract from their side.... Yet no one from cell c admits the problem of resolves it...