I unknowingly bought a trademarked domain name, what can/should I do with it?

I own a trademarked .co.uk domain name which I registered last year that has not been used.

The company that owns the trademark has previously been known to file requests to take ownership.

Should I just let the year expire and count my losses or is there something I can do with it?

ie. sell it? make a quick buck off of it somehow? or something else?

If anyone can shed some light on the legalities also it would be great!

how much will your losses actually be?

Try to sell it, if no one buys it just let it expire.