my friend, no need of all these. go for yahoo tours on goole, they charge 135 USD and u ill get visa in5working days.

DOCUMENTS REQUIRED:
1)colour passport copy scanned first and last page
2)QATAR ID colour scan
3)1 passport photo colour scan

remember ur passport & QATAR ID must be valid for more than 3 months.

its simple. have a nice trip & dubai is a very fantastic place to enjoy.