Remove Previous UPI User Check During Purchase

[RJM02]

The current purchase validation checks whether the customer's UPI ID has been used previously and blocks the purchase based on that condition. This logic creates unnecessary friction for users and can prevent legitimate purchases.

A common scenario is when a user has an old account and later creates a new account while continuing to use the same UPI ID. In such cases, the purchase is blocked because the system identifies the UPI ID as belonging to a previous user, even though it is the same person. This results in a poor user experience and prevents valid transactions.

Please consider removing this validation. Eliminating the previous UPI ID check will make the purchase flow smoother, reduce unnecessary purchase failures, and significantly decrease the number of support tickets and customer complaints related to this issue.