Forum:Very, VERY big problem

I have a PC retail version which I got a long time ago (christmas 09 I believe). I subsequently bought the DLCs on digital retailers (GS or 2K, I don't remember) and now I have a big problem. I've recently reinstalled Windows 7 on the computer and now I'm trying to reinstall Borderlans and it's DLCs. However, I lost the codes for the DLCs. They were in a previous e-mail account that has been blocked for some reason. Worse yet, the backup for it was an even older e-mail that apparently doesn't even exist anymore. I still have the files for the DLCs but not the codes. I actually still have one code however and it's the 4th one which I saved in a notepad file. Now obviously I don't want to buy them again but even then, I CAN'T buy them again since they aren't avalible anywhere. So, what do I do? The easiest solution is to just get some keygens on Pirate Bay but for once, if there is somthing else, I'll take.