Update

RO has emailed back to confirm that I did everything correctly (phew!). There was a failure on the part of the technology. Should give him something to think about for future events. I'll probably suggest that those with their own dibbers should hand over their race numbers on their return, especially if they don't complete the course.

The MRT call out was a separate issue relating to a competitor who'd strayed off the course route and was stuck in vegetation.

TF