It depends on the payment processor as some payment processors will retry the credit card on another date. Once the payment processor stops retrying the card and the membership is cancelled in their system they send a notification to our software which suspends their account as if they had canceled.
A member cannot belong to more than 1 membership. Instead, you can setup so each membership has different content.
Then make the membership that the member upgrades to include all the content from the member's original membership.
You can do this by setting up content groups and attaching them to content.
A. Direct Payment - Add SolidTrust Pay button:
1- login to your solidtrust pay account
2- Go to my account -> view profile page
3- copy your username
3- Go to Merchant Zone -> Create Subscriptions
4- Click MEMBERS - view the items you are subscribed to
5- Copy your subscriotion Id
6- Paste both username and ID to your personal info page under
Solid Trust Pay Username
Solid Trust Pay Subscription ID