Bad signal and customer service!

We have had no internet access for the past 14 hours eventhough it is connected. I have phoned them to log the problem. We have had this problem for the past 3 months now and I phoned numerous times to report it. The connection picks up then but the problem just returns a day ater. I have tried my best from my side unplugging the router, unplugging the black box etc etc. Last month, after begging them to please come and check my connection after several complaints, they told me they are not going to as it is not necessary! Eventually they send out a team who changed the black box and then they charged me double the monthly premium! And the problem persists. We are paying a hell of a lot of money for this contract per month. After all these years we have been their clients, we have NEVER had so many problems with our internet connection like in the past two or 3 months. I have had it with them. I am a customer with serious issues and it seems to me that they are unable to help me. I am going to look for another seevice provider. . I cannot carry on paying so much money for a product and customer service which are almost non-existant. 😡😠😡😡😡😡