I've worked for an ISP. The only fees that are arguably reasonable are taxes imposed on the company so you can say we offer $n across many markets + local/state

I've worked for an ISP. The only fees that are arguably reasonable are taxes imposed on the company so you can say we offer $n across many markets + local/state/federal taxes as applicable. These taxes are a tiny minority of such fees which exist solely to open with we offer service for a small n which is a crappy undesirable level of service whereas actually charging as much as 2n for small levels of n. Instead of disclosing them just make all extra fees for consumer facing service illegal and force a singular ala carte cost where the total cost is the sum of entries like buying cans of beans at the grocery store. It's a known field that needs no creativity in its pricing model.