SUCCESS !!!
I phoned them up and it went through with no problems at all.
I didnt even have to speak to a customor advisor.
Even with it being a completely new machine with new hardware.
I'm happy now. Having spent my money on the OEM I am glad I didnt have to go and buy another one.
And for anyone thinking I have two installs, I only have one. My other PC died hence my new build.