The main objective of paytm is to earn money only.They don't maintain their pages.
Pages will refressh anytime,payment will be in processing state for hours, even sometimes days.
The infrastructure which they maintain is not at all supportive, which lacks reliability.
I ended up with a loss while booking flight as page was showing some other thing while saving and after processing the result was out of context.Later on had to cancel my booking,because couldn't revert back.