What is a B1.1 course?
How were you forced?
How was the contract (bond) initiated?
On the assumption that a B.1.1 course is a type rating or something similar, then I assume that the costs incurred by your employer are recoverable by the terms of your contract of employment?
By forced, do you actually mean it was the best choice in the circumstances?
Usually with any contract there are terms to satisy the contract early. Do you have these?
You haven't really given enough information on which to offer a proper opinion.