How long did it take you to go from deleting the account on the website to reinstalling the app? From your account it seems like the two events might’ve been close together, you should allow for a few days and check back.

Send them a GDPR request for your data and another later on for its deletion. Be aware that legally they have thirty days to comply.

https://help.uber.com/riders/article/submit-a-privacy-inquir...