Hi
They could but it's unusual.
American Express and Diners Club are more likely too than other creditors but would normally go for a charging order in the first instance.
Regards
They most certainly can make you bankrupt if you owe them money you have not been able to pay, but are unlikely to do so as it would cost them in the region of £2,000 which may not ultimately be recovered. In contrast, they are more likely to want you to stay outside of bankruptcy proceedings where they can continue to pursue you for payment directly.