Logic on pending subscription cancellation

Can anyone help me understand how to solve this problem?

Someone subscribes, but the subscription payment fails. It is marked as on hold. they try again with a different payment, so a separate new subscription is activated, and by flunetCRM integration creates the correct membership tag.

Some time later (10 days?) the on hold subscription goes to cancelled status and removes the fluentCRM tags as it triggers the fluentCRM integration for the subscription to remove tags. But they have a different working subscription and so should keep the tags?

Can I not rely on the fluentcart integration and creat with automations in fluentCRM or a php snippet or something else??