Not able to communicate with 2 xbee's

I have bought xbee pro s2b from Bangalore, india but communication between xbee is not happening I consulted expert they recommend to complain so I request you give suggestions or help me to contact your expert in bangalore

What are current firmware version loaded on both units? What are ID, SC, DH and DL parameters configured on them?

This is Digi forum and all members here try and help each other out with issues related to Digi devices.

For complain, you should write at Digi’s customer portal:https://mydigi.secure.force.com/customers/