When using Tapatalk, it seems to register people as online (as they're in Tapatalk) even when not viewing the actual forum (ie on a another site through Tapatalk). Given the time line, it's less than 24hrs since the message was sent. I don't think it's unreasonable to wait a day or two for a reply.
I understand the annoyance, and I think that there's a fair few that would contribute something towards the service cost in this situation. But it purely be on a goodwill basis, as there's no obligation if the watch is functional when received.
Sent from my Pixel 2 using Tapatalk