not supporting apple pay service iphone 6s

Hello tanfig,

 Welcome to Apple Support Communities. it looks like you're having issues using Apple Pay, and we'd like to provide some guidance.

Please check the following link for information about devices compatible with Apple Pay, as well as supported countries:

Apple Pay is compatible with these devices

Countries and regions that support Apple Pay

We hope this information is useful. Kind regards.

In that second link that was already provided to you, Apple Pay is nit available in Qatar.

The only countries where Apple Pay is supported are these -> Countries and regions that support Apple Pay - Apple Support. Outside of those listed countries, there is no ability to use Apple Pay.