Napisz to inaczej,
Dear Sirs,
I enclose all the necessary documentation in order to obtain a British driving licence.
Recently, I have been successful in obtaining a job, however, one of the requirements of the job is that I hold a British driving licence.
I would be extremely grateful, if you could speed up the process as much as you possibly can, as I am fearful that I will lose the job if I cannot produce a British driving licence within the time specified by my future employer.
Thanking you in anticipation,
Yours faithfully
XXXXXXX
W UK mamy inny styl takich listow jak w Polsce i musimy toi lagodnie i proszaco zrobic, bo inaczej, to cie polaza na ostatnie miejsce.