Need answers for what we are being billed for

for nearly four weeks we were waiting on someone to come out and see what was wrong with our directv. When the service person came he told us our receiver was out of date and told us to call a number. Since we’ve been with directv for about 20 years , he said there shouldn’t be a charge for the upgrade. After we called, we received a letter stating it would be $21. So we set up a time for the upgrade. Then after the installation, we received a bill for about $150. We never could get anyone to talk to us about why the cost went up. We went ahead and paid the regular monthly amount as we had been doing even when we didn’t have any tv. A couple of weeks later, we had high winds and the satellite blew down. Since no one would come out to see about that, my husband fixed it. DirectTv said they would send someone to see about it, never happened. We have about half the channels we are supposed to have and we continue to receive a higher and higher bill with no explanation and no one that we can talk to about it. We need some answers now. We’ve always recommended DirectTv to others, but that’s not possible anymore. Someone needs to pay attention to customers and make things right.