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Applied for my wife:

Visa applied 6 September.
Biometerics were done (completed)
Medical (submitted upfront) and Passed 13 September.
Background check in progress.

I dont know what it means - hope to hear something good soon. Its really frustrating... but praying and hoping!
From abu dhabi??.. I did not submit upfront medical.. Is it effect on my processing time??
 
No its doesn't impact at all. However if your medical request comes.. your Visa is about 90% confirmed (based on my reserve