Delivery Stop

About 3 weeks ago, my Opel dealer informed me that Opel has ordered a delivery stop for the Opel Crossland X. 4 weeks ago, I signed a purchase contract for an Opel Crossland X with an Opel dealer of the Brass Group via an Opel Crossland X, which is in stock but can not be delivered now due to alleged improper welding points on the back bench, exactly could not be explained to me and even a demand at Opel in Rüsselsh im was unsuccessful. It is certain that about 400 Opel, which were delivered to the dealers, are affected by this. Opel now has to check how the problem can be solved (and now for more than 2 weeks!). I find the whole thing very ridiculous and doubt now whether it is really only problems with the back bench. Does anyone possibly have more insider knowledge??