HDFC Bank — Not able to make online payments using net banking

I am not able to make payments/ purchases at any of the third-party websites such as Amazon, Flipcart, IRCTC, PSPCL, etc. using net banking. I have shown the same issue to your employees/ RMs in the HDFC main branch at Bathinda, but unfortunately, they were not able to solve the problem.

As suggested by HDFC branch personals, I have filled the e-age forms, Increased and Decreased TPT limits, and filled forms to activate the third-party rights.

After repeated attempts and visits to the main branch in Bathinda, I was then told to take screenshots (step by step process) and share them with the HDFC customer care team.
So I have shared the screenshots of the same with the bank manager via email, and hoped that the issue could be resolved, but then there is no communication from their end.