SADV poor support

I am struggling for the past 4 months with SADV, I dont receive the service that I am paying for, I am struggling with connection to my wifi, I have reported by more than 50 mail and no response from SADV, I have made more than 100 call no response from SADV, I pay for a certain package that I dont receive Half of the package at some times. They have promised to credit me for 2 months but that was also empty promises from them, I have tried to find a other provider but they are the isp in my area.