I used a fee change of a few pennies to get out of an ETF on a Verizon Wireless contract on two subsidized Blackberries back when smart phones first starting to

I used a fee change of a few pennies to get out of an ETF on a Verizon Wireless contract on two subsidized Blackberries back when smart phones first starting to blowing up. The best part is, I didn't even have the credit for the subsidy so I had to give them a 2 year deposit on the full price of the phones. But since THEY (technically) changed the contract by raising my monthly fee from 5 cents to 8 cents or something, I GOT THE DEPOSIT BACK! I sold the phones on eBay and made a lot of money (for a high school kid). I think the charge was called 'federal universal service charge' and there was a whole guide on how to use it to your advantage. You had to sound really confident and have your contract open to the relevant clauses so you could confidently read it to them over and over.