hope you got your money back
Money refunded this morning by Alex when VW were able to extract a different code form the unit itself.
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In his defense, the code VW acquired from their own database was the same one he provided originally so in essence his service works but is at the mercy of correct/incorrect data on the VW database.
VW confirmed that the database is 60/40 at best but this comment was "off the cuff" so to speak so probably should not be taken at face value.
I would still recommend Alex as his service was quick and relatively cheap if unlike me, you don't have the option of a mate in VW to scan the unit for free.