Thank you so much for this warning, seems like I dodged a bullet
I've been contacted from 3 of this numbers
The second number called me a few times this month outside my working hours (past midnight)
The third number called me a few times last month (at 6 and 5 am), he texted me as well arranging an incall booking and it was a no show
From the last number he texted me requesting an outcall to Bury which I don't do