There are reviews on here, they are legit beauty place/hairdresser with FBSM for the gents and they are known to be cautious on the phone IIRC.
I am sure if you say you booking a massage you will be fine, its hand relief with that I would say 90% certainty unless they think you plod!
As these sisters? initially worked for Me & You spa, they likely do prostate as well if thats your thing.
I have not been to ACAM but there were discussions on here if you search.
It is on a busy high street, not sure if FBSM is after 5.00 pm or anytime they open, I would vouch for the latter.
Please review if you go