Translation (message from Xbox Live chat spanish technical support): "In case of any inconvenience about the microsoft points spent in that content, it's up to Bethesda providing a patch or game's update, which they will eventually upload to our servers and then you will be able to apply the update to your game. Regarding your inquiry about if we know about this problem, we don't have official information about it, but as soon as Bethesda provide us the patch or updated info about it, it will show as a necessary update of your console system, or at least we will inform about it in the xbox.com webpage"
So they seem to don't know anything about this, at least in Spain, this is too bad...