For now at least, I am not stating
loginsam45 is telling the truth nor am I stating you are the one who is truthful but as a point of interest we should have some clarity on what was mentioned by _BlackStar. Can you sign any of your three known addresses from 2014/2015?
If you are unable to sign any of them please explain why.
Anyone is welcome to file their complaint but I am truly astonished by how openly he discusses his alternate accounts, a behavior that I have never witnessed before. If he can provide valid evidence, then undoubtedly, he will be able to recover his accounts accordingly.
I can truly say that newbie are making false claims if you make a disclaimer by signing your old bitcoin address before you change the account password. That's one of the best ways to make a disclaimer - but I don't have to force you to.
There are some old wallets you used in 2015 - if something never happened to you and the file store you should be able to sign messages from those addresses.