Thanks for your answer. The recruiter responded to me that "
There has been a change in policy, which requires the current passport document number to match the visa document number.
Your passport number does not match the document number on your Visa.
Although it is stamped into your current passport the Visa corresponds to your previous passport.
This is required for the new regulations issued by the Home Office."
Q. - Please could you advise if this regulation applies to my residence card and if this will affect my right to work?
Hi, the new recruiter gave me the date the Regulation came into place 16th of May 2014. With this I called the UK Border Agency and they confirmed I will not be able to go to another job with my current permanent residence card as I need either for my current passport number to match the passport number in the residence card or to obtain and Biometric Card.
Thanks, ***** ***** the Home Office and complaint on the recruitment agency interpretation of the regulations and how with their decision potentially affecting my right to work. HO sent me an email confirming my right to work and were happy to speak directly to the recruitment.
Many thanks for your time and guidance on this.