I am on hold with their sales department right now. Comcast irritates me to no end! I have been a Comcast customer for 5 years and had no viable options to go

I am on hold with their sales department right now. Comcast irritates me to no end! I have been a Comcast customer for 5 years and had no viable options to go elsewhere. I now have an 501c3 and they were going to give me a great price, but because I am exempt on a state level and still waiting approval on a federal level they want me to pay full price and retroactively as a 'billing adjustment' give me the difference back. We would be talking a $1153 credit on my account which means Comcast still gets the money vs our 501c3 having that money in its pocket!