The OP , although stating they have been a BT customer for 12 years made no mention of the ‘box’ in question being provided when they became a BT customer, an as they have already had two Openreach visits ( albeit by the same person ) who stated this ‘box’ has nothing to do with Openreach ( and therefore their BT service ) and the OP has compared it to a site showing common Openreach enclosures and there was no match , it seems a little odd that the OP is convinced the ‘box’ is part of their BT service ……it seems they will post an image if this ‘box’ , until then the evidence available suggests they are barking up the wrong tree, Openreach don’t use any Virgin equipment, Virgin shouldn’t use any BT/Openreach equipment at a customer property, but VM do use PIA ( physical infrastructure access ) but they didn’t 12 years ago .