I have been stopped two and half months ago for travelling without a valid railcard, interviewd under cautions and warned that I'd have received a letter from the TOC in the following 3-4 weeks. This has not arrived (yet), but I'm planning to move to a different address in approx 2 months. Assuming I don't hear from them in the next few weeks, Should I contact the TOC and see where the situation is or just let it go, hoping they have dropped (for whatever reason) the case? Thanks