Hi, just wondered people's opinions as we are at risk of losing our onward property today because our buyers solicitors are being pedantic about the developers consent for our conservatory and won't exchange untill resolved. Basically we had a conservatory built back in 2013 which we obtained consent from the original developer and provided this letter to our solicitor with all our other paperwork but has been lost somehow. We have since gained retrospective consent and proved we paid for the original consent at the time but our buyers solicitor is getting quite shirty and only want original consent or confirmation it existed, this would be ok but the developer has lost all the original paperwork we sent them too! We have also offered some sort of underwriting but this has been rejected too. Have gone back to developer with letters from neighbours, drawings and planning permission but getting desperate and they were slow enough the first time. Anyone got any suggestions? Just want to exchange and secure our purchase