Yes the terminology is confusing, but if you don't pay for the latest map it doesn't really 'update' as such. The Version 2013.20 EU map being offered above is either the one loaded on the unit from new in the factory, or the last one that's since been legally purchased. It is indeed the 'current' map entitlement in that it's the one which the unit is currently allowed to re-download free.

So did you try my other suggestions? (Reset the head unit and use a different card with a freshly generated XML).