RE: @Oversphere IG
Yes, I would like to add my own input on what I believe happened.
OP had created a brand new email, to secure the acc on, proof can be shown in my email (anyone who would like proof may come to me privately as I would not disclose public emails).
My assumption is that IG detected the spam email, and reverted to original email on the account(?).
I have heard of this happening, nor was I in any specific rush to sell the account so I have no reason to scam, nor would I want to.
I hope people can understand, and if for any reason the account was jacked, deal with extreme caution.
Sorry this happened OP, I will help in any way I can.