I paid an electrician to wire it in. He did it as a foreigner so he won't be able to come back until the weekend. I've got a 3 year old and a 4 week old so being with out a oven and hob is s**t.
I appreciate everyone's help and I have a better idea today than yesterday
I have had a new consumer unit fitted to replace my old baker light fuse wire one.
Since it has been fitted the double oven and separate hob are tripping the RCD (both are wired through the same isolator)
I have disconnected the oven and tried to use the hob and vice versa and both still trip...