Agency want personal details for HMRC requirement

[SteelyDan]

you're lazy for not reading the OP, they said they'll have to share all of the below information and were notifying OP of this fact, they weren't requesting anything

Indeed. This was the last bit "In accordance with data protection legislation, please take this as formal notification that Experis will be sharing the above information with the HMRC (which we are required to do under legislation)."

[portseven]

One of my current clients is a BOBCO and I have just been asked for this info