Bad service

We join Skyfi January 2018 we never had a problem with service, as grom August we have so many problems we were off for almost 3 weeks with no Internet service and after continiously 2 times a week. If I talk to them and ask for credit they just ignore my mails. But if I am not paying they suspend my account immediately and force me to pay a reconnection fee of R145 before they unsuspend me. I am not the only client that have this problem. Please give me advice what to do

Thanks

Sarie ********** 441