Thanks, Alex I really appreciate this! I already have the dongle so it's just a question of acquiring the other part of the cable. I'm not technically minded so setting up my Audio Moth is a steep learning curve for me - as will be the next steps, I suspect. so good to know help is out there!
Regarding the required cable, I was surprised that no information was given about the requirements on the otherwise excellent set-up information - other than it was not included. The information about the micro SD card and batteries was most helpful. Looking at the forum, it seems I am not alone in having cable problems.