Hello Pip,
You chose to use an alias in GEDmatch. So by default your account does not have a link to WikiTree. Please change your setting at GEDmatch. See https://www.wikitree.com/g2g/890141/have-you-enabled-sharing-of-your-wikitree-pedigree-gedmatch?show=890141#q890141
Thanks, Peter. I couldn't find a post that would tell me. Just what I needed.