I used to have this steam account called Hustler999 when i was younger and a big gaming fan. Fast foward a couple of years i have lost my old phone number asssociated with the steam guard, my old phone, deleted my gmail, don't remember the account username whatsoever and i really wanna recover it for the nostalgia. Now I know the only way to contact steam support is through opening a ticket but from all the paths there I don't see one that could help me as they all require a piece of information. This seems impossible and it probably is but I do remember a few years ago, i don't know if it was that same account or another one where something similiar happened where i had to change the email account and i couldn't access it so steam support asked me if i could tell them the details of the method of payment i had used, such as the cards holder the billing address, etc. Now luckily I remember 100% i had used my aunts credit card to pay and I believe that steam still has that data. Do you think it is enough evidence to recover the account or it really is mission impossible?