Lowspirited 
This option is used when you are asked...where if u were living outside the UAE, got interviewed by the EY office in that country (out of UAE), the office in Abu Dhabi will send you the contract via email, where you will read it...accept/reject the offer..if accepted, you sign the contract & send a scanned copy of it to Abu Dhabi via email...including certificates or other files asked from you (after you get accepted for the job)..
Anyways, it is rarely used by EY...I know a relative that used it (after interviewing in the US)
Cheers