I Recived One Job Offer From Shell In Uk And Now They Ask Of Me To Continue With British Expatriate Immigr?

Attn:Vahid Seyed Karimy,
WELCOME TO THE CLIENT UNIT OF THE British Expatriate Immigrant Services LLC.
We acknowledge your email and enquiry. Hitherto, for the immediate procurement, processing/monitoring of your Paper Works/Permits Documentations for eligibility to live and work here in the UK, you are to provide us via fax or as attached document the following;
1) International Passport Copies of yours’ and any member of your family coming with you.
2) Job Offer Letter from your UK employer
3) Completed copy of the attached Work Permit Application(Find here Attached)
4) Cost of Procurement For Single Status: 380GBP
Cost of Procurement For Family Status (One):650GBP
Cost of Procurement For Family Status (Two):1030GBP
NOTE:FOR FAMILY STATUS (ONE), THAT IS YOU AND INCLUDING 2 OTHER PERSONS
FAMILY STATUS (TWO),YOU AND INCLUDING 2 AND ABOVE PERSONS
We shall give you directive on how to send the money over as we do have stipulated time given to us by Shell Oil Company to process the papers of their newly employed staffs.
Your paper works shall be processed directly from the British Home Office here in the UK. However, without your processing and acquisition of the necessary UK legal paper works and approvals by the British Expatriate Services Commission here in the UK, you cannot be granted travel/working class VISA to the UK and as soon as your legal paper works are duly processed and obtained on your behalf, we shall send original copies of same to you and fax copy directly to the British High Commission/Embassy in your present location for immediate issuance/stamping of your VISA within 48 working hours.
Please be noted that all your legal paper works shall be due for processing in not more than Seven(5) working days from the date receipt of the aforementioned documents/required charges.
Phone:+447011152569.
Fax: +447092887036
Sincerely,
Richards Briggs,
Head of Operations,
British Expatriate Immigrant Services LLC,
18B White Hart Street,
Kennington London, SE11 4EP.
UK.