I live on the continent and I understand that a lot of the large chainstores import their 'own' wines in large containers and and then bottle them themselves under their own brand name. As he has specifically mentioned Belgian this could be Carrefour, Delhaize, Cora or Colruyt. What is the name on the bottle cork? For a cheap bottle of wine it is not worth the bother of conterfeiting. You seem to have been unlucky, maybe it was the end of a bottling run or something.