Props to this clinic, not for turning him down "for his own good", but for writing such a predatory contract and convincing OP and others to sign it.
Most clinics I've researched book by a non refundable deposit. Paying everything up front with no guarantee of the procedure, just doesn't seem right.
I thought the EU was known for strong consumer protection? I guess cosmetic surgery does not fall in to this realm.
OP - can we please see what your donor looks like?