rossco18_UK Basically in the UK, all airfields from the smallest to the largest, seem to have the right to charge for T&Gs, so it is safest to assume that you will be charged, unless you have made any prior arrangements.
And certainly, if you do not offer to pay the L/F, it will catch up with you, eventually!
As mentioned above, the airfield may well phone your base airfiled. Alternatively, they simply check the CAA G-INFO website, to get the A/c owners name & address, & send the invoice to the owner. And if airfield have to do this, some of them then add on a sustantial "account charge" for L/Fs not paid on the day.