It's been a few weeks since the installation. Unfortunately the hobs weren't working after the cooker was wired in. The electrician came back out the next day to recheck the wires, still the same issue remained. I managed to hire an engineer via Pacifica to have a look a week later. He said it wasn't wired correctly, but I'm assuming it was since the oven was working etc. It seemed to be a fried neutral at the wall that was the main issue. All sorted now.