Uber India — licence plate no. not displayed in mobile on booking a ride

Address:

Mumbai City, Maharashtra, 400089

Post bypass surgery i have been taking eecp treatment
At hospital for more than a month for which i am using uber. Os. As the last 4 nos. Of licence plate are not displayed in mobile on booking a ride i am forcrd to check the same by calling the driver whichsisometimes creates misunderstanding with driver.
Please let me knnow how to solve this problem.