Lack of Common Sense from Kabam.

So I wanted to unlink one of my phones since I'm selling it off, and I asked kabam to do so. In return I was asked to verify my first two purchases which is more than 4 years back. Apple's purchase history does not show information of more than 90 days. Anyone know how else am I supposed to get this information and according to Kabam this is the only way to verify (DUMB).
Suggest and Help please.
(P.S. I changed my bank couple of years back.)
Suggest and Help please.
(P.S. I changed my bank couple of years back.)
2
Comments
When I reinstalled mcoc I was already logged in so a factory reset won't work.
I guess it might work if the phone isn't logged into a Google account?