In order for your member to download their membership card, there needs to be a few items in place:
They must be active and enrolled in a membership program
They must have access to the member portal or you can e-mail/sms them a direct link (so you will need contact info then)
Once these are met, your member can now download their digital membership card by:
Visiting your member portal at https://member.yourwebsite.com/account and clicking on the Membership card on their account menu.
You can send them there direct by going to https://member.yourwebsite.com/account/memberships. This will load their membership or give them an option to choose if there are multiple.
From within the PeopleVine Control Panel, you can go to the member's Membership Card and click on SMS or Email to Member. The system will generate a message with a direct link for them to download similar to http://gopv.us/mc/1234/567/8910