"Already tracked..."

[HPR1978]

Hi!

I wanted to start playing at Ultimte Bet(got an account there but never played) with my raketherake account.
But they told me that I´m already tracked by another rake back company at UB and they can´t tell me which one.

I think that something went wrong with deleting the cookies. I was at a lot of rake back sites before I chose RTR so it´s quite difficult to figure out which one it could be.
What would you do? Ask UB thmselves? Would they tell me? Or do I have to write an email to every single rake back site?

Thanks in advance!

Greets
HPR