Hi John, I can help you in it.
Do you have any application or reference number with you ?
Entire registration process takes upto 30 days. Backgound check generally takes around 7-14 days because they check your last 7 year details.
You will get congratulations email once they selects you. So check your emails if you have received any email from them. Check in your junk box or Thrash as well sometime it accidently reaches there.
If you didn't receive any email from them then you can check detail of your status by visiting https://partners.uber.com site.
You can mail uber and check the status of your application from them. For that you have to drop an email to :-***@******.***
Check if you have uploaded all the required documents with them and ask them if they have any problem in any of your document.
Let me know if I can help you in any other way.
If you think I have answer your questions then you can close this request.
Thank you . :)
Please don't forget to give me your valuable rating or feedback :)
Let me know if you have any other question. Thanks !!