The UPI over credit card is primarily there for peer-peee merchant transactions...
Nope. Signing up as a merchant is simply the matter of downloading the business version of GPay or Paytm and submitting minimal KYC documents.
> peer-peee merchant
Did not understand this part.
I think you were talking about registering as a peer-merchant, not a "proper" merchant! MDR etc cannot be charged on peer-merchants[1], and are essentially peers, but with restricted purpose codes that they can accept money for.
[1] https://www.npci.org.in/PDF/npci/upi/circular/2019/Circular%...
Of course, it is possible there might be some bank offering a pix-enabled credit card, but I don't see how they'd have any incentive, precisely because people could start doing that.
I'm not familiar with Pix but from what I've read, it's similar to India's UPI. There only two real problems with UPI:
1. Card networks have standard dispute resolution process which often involves a temporary credit while the investigation is ongoing. Disputing UPI transactions on the other hand is painful.
2. Banks don't make any money on UPI transactions. And with UPI credit transactions, they are basically giving people interest free loans. And considering there are no transaction fees, this is open for abuse.