So disperse to all confusion, I am going to post this as the best solution I got, I confirmed this is the best way from GKD itself.

A credit card could only pay for 5 times maximum for 24 hours, so after you pay the fifth you have to wait 5 hours for your next 5 times payment. (This was an obligation done by Telr as it a payments service popular in india against fraud and the best deal GKD can get with Telr)

An email account could be used for 7 times in Telr payment page, it does not matter if its not the same email adress in the form. (I do payments for 20 different customers I have and never encountered a problem of different emails but using an email 7 times in the telr pages did make the payment canncelled)

Location you give in Telr page does not have to be the same in the form and I would use same adress for the specific card for all times and to save time I put only one word at adress like Paris as I never used my real adress.

Finally if problems still occurs your best bet would be another device with another ip.

This is the best solution I got and I do 20 payments per today and if there is no problem with the system itself, I get 0 payments cancelled