Works the other way:
I got my PPL in 1993 at a fine large grass airport in East Anglia.
Two years later the Labour council sold it off for housing and the three resident flying training schools were booted out and scattered to the four winds.
My school was sold, renamed and the set up transferred to a large commercial airport in E Anglia.
Fast forward to 2008 (15 years) when I went to a school at said airport to do a rapid Night Qualification prior to starting IR training.
Where did you do your PPL? I was asked. I told them.
'Just a mo' said the nice man behind the desk, walked over to a filing cabinet and fished out my training records from 15 years previously.
So: not all FBOs are sh ite at keeping records.
Good luck at getting resolution to your problem.
Cusco