$2 free call credit bonus from Zenofon for referring your friends to make a free test call

Most of this blog readers must have tried and enjoyed Zenofon referral program and free calling credit. Now Zenofon has raised the bonus to $2 for convincing your friends to make a free test call with $4 free time-release coupon to try ZenoFon If your friend is having a mobile number to get verified.
If you are not a member of zenofon, then join zenofon to earn $4 free call credit and start