Razorpay — Repeated payment failures

Repeated payment failures noticed on my account since last 1 month through Netbanking of mainly AXIS, HDFC, ICICI etc. The majority of our payment failure is from the bank end which must have a technical reason behind this.
Because if this is merely from the bank's end, then all other business like us who are partnered with Razorpay should also suffer payment failure like us in the same way. But that's not the case.
Customers buying from Amazon or Flipkart etc are not facing payment failure issue. Then why they have to suffer payment failures while buying from our website?

It's purely a technical issue, because today 15th June 2021, after seeing few failed payments, I myself tried to make a payment on my own, and that also failed. So what suspicious/risky activity did I do? Is Everybody doing fraudulent transaction on our website? Or is there any technical issues behind this?