Poor and pathetic service

For the last three weeks I have been promised that your Field Service department will be in contact me with me and no has called me. Your service delivery is beyond pathetic. At the end of April 2018 I had one your agents install a 4 way compact aerial amplifier in order to connect my explora to two tvs. The amplifier is not lighting up and your agent is refusing to take my calls and I cannot pick up a clear picture on my second TV. My last call reference is 36738.