My dog destroyed my xbox live card and it's missing 2 characters in it. Is there any way, besides just trial and error, to correctly guess some digits/letters ? I really don't want to go through the massive trial and error process of entering all of the different possible combinations.
I would contact Microsoft support. I know I've had iTunes cards where the code got scratched off, and they have a process for identifying the card and sending you the code. I assume Microsoft can do something similar.