Heres the low down of the eVisa for UAE. Its still not enforced yet and entry still at the discretion of the officer at airport

In brief. I had to go through the issue Twice and a whole bunch of calls to Amer service.
Just go and Get the visa on arrival.

I spoke to an immigration Officer on phone after contacting Amer Service as per the immigration officer at the Airport If you have already applied and the process has failed take all your receipts and form copies to the Immigration main office at DUBAI Airport for refund (In my case 2 refunds)

Will update from Dubai.