Doesn´t matter what happens or what you do, they can´t take your licence away. That´s yours, not theirs.
Been having this discussion on me CPC hours course.
Bus companies do the same, apparently. Take you on, they pay for your Cat D, then you work for them for two years.
Sliding scale of payback etc.
General consensus is that if you find something else you would rather be doing…go for it. Try and dodge the bullet as long as you can, but pay up, in monthly payments, before you end up in court (if it ever comes to that).