If you need to update your billing information for your Rapchat subscription, follow these steps based on your device's operating system:
iOS Users:
Click Here or open the Settings app on your device.
Tap on your name at the top of the screen.
Select "Payment & Shipping".
Choose either "Add Payment Method" or "Update a payment method".
Enter your new billing information and save the changes.
Android Users:
Open the Google Play app on your device.
Tap on the profile icon at the top right corner.
Select "Payments & subscriptions" and then "Payment methods".
Tap on "More" and then "Payment settings".
If prompted, sign in to your Google Pay account.
Under the payment method you want to update, tap "Edit".
Update your billing information and save the changes.