The REAL address... yes that's right folks, straight from the mouth of one of links employees, here is the real non-po-box address for their office: Link Financial 5 Trecenydd Busines Park Caerphilly CF83 9BX seeing as the postcode and town are the same as the po box it is likely the po box is in the same building... but at least we now all know where they are. Also... just for the record, the london office most people refer to is the same company but the one I just listed is purely setup to handle student loans.