Our gas hobs wouldn't always stay alight, so an engineer attended & said new thermal couplings were needed and these would have to be ordered in. He returned a few weeks later to replace only to realize he could not fit them because he was not gas fitter. Another engineer was booked, he came and fitted the new couplings, but could only repair 3 of the hobs also stated due to lack of parts and the age of cooker, he would not have recommended a repair. About a week later, all but one of the hobs have since failed so back to square one, been contacting Go Assist customer services for the last 7 weeks via emails and phone, no response.