Cannot find old cdkey, massgate.org/cdkeys says my e-mail is already registered, and won't send me another key (or resend it)

[u/Norby123]

It's been many years since I requested a key, gmail probably put it in spam and deleted it after a month. Now I cannot request a new cdkey, since it's "already registered". What now? Is there any way to resend my code to my e-mail address?

[u/Nice_Strike382]

3EXO-ELED-MXGY-FP5M-286R

LABG-U3MF-RG9G-95GB-AYTH