Its fairly simple(although a rip off) fill in the forms you have with the details of the company you wish to work for,(include their email address) include your payment
which used to be about 42 GBP(phone them for latest charge).then send off,allow a week or so then tell your company to email the UK CAA (web address on form) from email you gave on form and the CAA will send them email saying yes you have a licence.You yourself will get nothing for your money.
Good luck on new job.