Looking across the responses thus far makes me realise my starting point was not clear. A big shirft in my recent punting has been more research.
I have started doing a google search on (i) the phone number of new potentials (ii) profile name and area as well as (iii) a reverse image searches on pictures with distinguishing features of SP’s I am considering visiting.
This yields all sorts of interesting finds; profiles on other platforms, alternative photos, alternative service lists, alternative price lists, alternative SP’s using the same number, reviews listing same phone number but for different (previous) profiles or different SP’s. I am still finding my way with this but interested to hear if there are other searches I have not considered, as well as adapting the way I write reviews to increase the likelihood of hits.