Team KnowHow is a disaster! I paid for the installation on in-built oven £90 to happen on Monday 26 Nov; a helpdesk operator called me at 10:30 on 26 to tell me the installation have to be moved to Tuesday 27th because their only installer is off sick. So my new installation window is 9:05-13:05 on Tuesday 27th. I have taken second day of leave from work for this as i was guaranteed the installation will go ahead. On 27th at 10:10 i called the helpdesk and was advised that indeed my slot is 9:05 - 13:05. At 13:14 i called again and was advised that the installers are just being delayed. I called again at 15:15 and then was advised that the installation was actually cancelled on Monday!! the operator told me her manager will definitely call me back. This never happened! They still haven't refund me my £90 almost 2 weeks later so i have to call them on 03 number again. Usual time on hold 30 min