crashuk said:but that means i have to be there 3 years to recoup the money.
I sincerely hope your job doesnt actually involve you doing anything.
You do realise that you dont have to work there 3 years to get anything other than 3 years pay.
I am not sure it can be made any clearer for you, but here it is in just about as clear as I can make it:
ONE YEAR = £7800