We had a similar situation, and we basically just told the DISH CSR the following:
"WCIA says that they realize you'd rather have a fax, but all they are obligated to do is approve the waiver online, which they have done, and you should be able to get it from the website."
At that point the CSR said it might take a while to get it that way, because it's a more complicated process, etc., and we said "fine, we'll wait." It actually didn't take that long. I think the channels came on within a day.
So I'd say try again... it worked for us. We still don't get CBS-HD, but it's because we don't have a dish pointed at the right satellite. We do get KCBS and WCBS in SD, so at least we know the waiver works.
Can somebody who does have this working explain what we'd need to do to actually get CBS-HD? Right now we have a Dish 500. My understanding is that we'd need to put up another dish and point it at 61.5 or 148. Is that correct? How much would the equipment cost, or would DISH provide us with the equipment for free?