I've just had my oven professionally cleaned after it not being in use for a while and it seems some rust has occurred and has eaten a slight hole/ crack through the base of the inside of the oven. Is it completely unusable now? Is there a way to fix it at all? It's only between 1-2 years old as it was a new one fitted when I move in to my property and I can't afford a new one at present &
TIA