To benefit from this offer you need to let us know the email address or the Vendio username of the friend you recommend to Vendio. In order to validate your referral, your friend should not be an existing Vendio user. The upgrade to the yearly plan at a 30% discount is applied only if both you and your friend have at least one month of a paid Vendio subscription.
The offer expires at the end of the year 2018. This means that your friend should open a Vendio account (free trial is okay) by the end of the year 2018. Feel free to recommend as many friends as you like - only one of them has to keep at least one month of a paid Vendio subscription in order for you to qualify!