Ex Scientology Kids

Such a debt would certainly not be enforcable (In UK anyway, and I'm sure elsewhere)

Even if you have signed a piece of paper, a so-called 'contract', of the COS's own wording it wouldn't allow them just to charge you an arbitrary amount and call it a 'debt'.

A debt is only real if you've signed a contract lawful under the Consumer Credit Act and actually borrowed money. This would mean the COS would have to be registered as a money lender and be regulated. Also, they would have actually had to lend you the money, and you would have had to sign, or otherwise acknowledge that you've borrowed money, and several other conditions would apply as well.

As it's not a lawful debt it can't be used to affect your credit rating or anything like that. So tell them to get knotted !

Phil