To add or remove payment card follow below given instructions,


For change in PayPal payment card, follow below:

https://www.paypal.com/in/smarthelp/article/how-do-i-link,-remove,-or-change-a-credit-card-or-prepaid-card-faq1457


For change in Razorpay payment card, follow below:

You can delete the Card details or add a New Card by visiting this link and following the on-screen instructions

https://razorpay.com/flashcheckout/manage


For change in Apple payment card, follow below:

https://support.apple.com/en-in/118293


In case you don't remember whether it's PayPal or Razorpay or Apple subscription, please drop an email from your registered email address with the title "Change payment card for InTouchApp Subscription" at support@intouchapp.com.