Select a truck > Select the diesel card > Click on Change Number > Click on Add New Number > Enter new driver details > Enter the OTP
In case you still face the issue -
- Verify if there are any restrictions for receiving SMS on the device messaging app
- Delete older messages with the same Sender ID from the mobile phone to confirm enough space
- Check if the messages were routed to the spam folder in his/her device if there's one
- Restart the device in order to refresh the connection to the network operator
- Insert their SIM card into another device to rule out a faulty device
Please watch the video to see the full process.