People didn't believe that you could cancel a UK passport based on few details now heres the proof. I know this is not Thai visa related but fellow Brits be careful of people that out there with your passport details. If your employer has a British accent I guess its enough for them to cancel your passport. Again Thank you UK Government for our Lax security.

Edit -​ I want to thank Robert Lagas who helped me throughout this situation and gave me a peace of mind when my own government couldnt.