You don't need to pay again to start using the app. In this case, you need to follow the instructions below:
Delete the app.
Sign in on the very first screen.
Use your email and one-time code sent to the email address.
If that didn't help or you have any further questions, please contact us via in-app support chat or by email [email protected]. To contact us via in-app support chat, you need to tap the Support Chat button in the upper right corner of the Today screen and then tap Send us a message. We will reply to you within a few hours and help you resolve this issue.

