29 April 2021, call logged at Defy, oven not heating properly. Ref 1454330. Technician came out and armed with a screwdriver, pliers and a thermostat, he "tested" the oven. He said oven needs a new thermostat and door seals. used his pliers to bend the door, scrathing the paint. Ordered parts and returned 8 June, replaced parts. Now gas smell bad when using oven. 11 June new call logged, 1474211. Never heard from Defy again. Phoned twice to follow up, no feedback. Must I blow up my house first, before Defy will respond?