Sick of seeing the sorry, we're having some trouble message

Atleast 2 or 3 times a day I receive an error message when I try and select a channel. It's not a specific channel that is having problems it's all over the place with issues. This is unacceptable. We switched to Cox with the promise of a visa card also and I haven't been able to get any answers about how to get that. I have reset the cable box many times and it solves the issue sometimes but not always. I need yall to correct both of these situations now