Question re bursary for teacher training

I'm considering my options for teacher training, and have been looking at PGCE, schools direct and also teach first. Ultimately, I intend to teach abroad after completing my training. I have been reading about the bursaries available for training in secondary maths which is very appealing.

However I wonder whether there is something in the T&Cs about having to remain teaching in the UK for a number of years afterwards. If I were to move abroad immediately or soon after completing my training, is it possible I would need to return the bursary?

Any help much appreciated