So I just got the email too. My situation is a bit easier than that of yours because I can clearly remember only having fixed amount of fiat currency. The deposit to Cryptsy was from another market in 2m Dogecoins. However, all evidence I have is emails, and those are only for withdrawing and not depositing. I also have emails from Cryptsy support team apologizing for delays and my ticket submissions for not being able to withdraw. Does that sound like a good enough evidence to you?
Also, as I want to submit it electronically as I am from the UK, there is this specific part stating this:
NOTICE REGARDING ELECTRONIC FILES: Certain claimants with large numbers of transactions may request, or may be requested, to submit information regarding their transactions in electronic files. All claimants MUST submit a manually signed paper Proof of Claim and Release form whether or not they also submit electronic copies. If you wish to file your claim electronically, you must contact the Claims Administrator at 1-888-868-4936 to obtain the required file layout. No electronic files will be considered to have been properly submitted unless the Claims Administrator issues to the claimant a written acknowledgment of receipt and acceptance of electronically submitted data.
Does this mean I have to phone them, acquire the permission and send them Proof of Claim and Release form physically? Then what's the point of the online claim form in the first place, lol.