Small print on signs at a tram park and ride hid the fact I could get clamped

I followed the obvious signs but an enforcement officer had to point out a notice on the back of the entrance sign and it cost me £140

Our car was clamped while parked at the NET Forest Tram Park and Ride in Nottingham, and we had to pay £140 to have it freed.

The prominent signs displayed at the entrance state that those parking without using the tram will be clamped. We did use the tram to and from the city centre after walking in the adjacent park.