Is there a NON UK resident tax fee from british Inland Revenue Commission outside UK?

I was hired through online employment from one of the Hotel in Ireland, all doent from me and my employer was sent & received through email, after a week of exchanging forms, my application was accepted and employer gave me a contact emails from the UK immigration to contact for the working visa application and istance, immigration officer from UK emailed me the application form and asked to pay for 165 GBP through western union and send to the name of Damian Green – immigration officer after 2 days they have sent me the scanned copy of my Certificate of employment (from my employer), offer letter, invitation letter and UK border agency cert and copy of courier receipt and informed me that after 3 days I will be receiving the copy doent and proceed to UK emby in my place for the visa application, and original doent will be stamped upon arrival in UK but after 3 days the immigration officer emailed me again saying that BIRC (British Inland Revenue Commission under the name of Peter Vieto) intercepted my doents DOC/0495/IE/UK/ and I need to clear the NON UK Tax fee or stop order for 560GBP as soon as possible for the British courier can clear my doent as it was submitted for Custom Routing inspection in Heathrow International Airport (LN/HEATH) My concern is, is there any such a NON UK tax fee if Immigration just want to send a doent copy outside UK? Is it supposed to be the employer should send me the papers? Can anyone please answer me. Thanks.