Network Department Refusing to Fix the tower problems here

I have 5 contracts with cell c including a WiFi router. Every month minimum 5 times we have to log network issues because the tower loses signal in which the technicians refuse to deal with the problem.

They always telling us to roam on Vodacom but we only get edge which means on a LTE device can't function!

Why must I pay nearly R2000 for contracts if they never have any signal!

I am considering canceling all contracts and porting to vodacom. I am tired of having this fight for the last 11 months!