Had 2 small equity releases on our home. Have paid off one. Building Society contacted us and said they would return Deeds. We pointed out that we still have a mortgage with them. They looked into it and said we were right(!) and that it was their mistake. Weeks later they sent us the deeds! I want to keep them, simply because these people are SO inefficient (not their first mistake with us) and I just don't want the trouble of trying to explain all of this to them again. Where do I stand legally if I hold on to the deeds? Come to think of it, (and I'm not promoting dishonesty but just asking), am I still obliged to make mortgage repayments given that the building society no longer holds collateral?