OK, very good:
Stephen Lea
Marshall Direct UK
29 Landside
Pennington, Leigh Lancashire WN7 3JT
United Kingdom
If your season is now at an end, you can send both the failed one and the replacement you paid for. We'll send you the new one to keep and use (and test) and credit your CC back the 30 quid spent last year, since this would be a Warranty replacement, a different situation than merely misplacing it.
RB