> Unique identification of the user "The account logged in right now" > Unique identification of the contract "The only contract I have with you" > The desi

> Unique identification of the user "The account logged in right now" > Unique identification of the contract "The only contract I have with you" > The desired end date of the contract "Next possible date" Note that specifications like that already have to be accepted when canceling via email or letter since forever. Requiring anything substantially harder than that won't qualify. In particular, customers can't be required to go through a maze to hunt for some arcane contract number that is not typically used in communication with them.