There are 2 ways to renew or extend a client's 'minimum' and 'fixed' Debitsuccess Contract:
Debitsuccess Method
The Trainer/Facility can submit a completed and signed 'Contract Variation Form' directly to customerservice@debitsuccess.com requesting the renewal/extension of the client's contract. This process won't charge the client a new 'Establishment Fee'.
PTminder Method
PTminder doesn't have the ability to renew/extend a client's minimum contract in Debitsuccess. The only way is to completely cancel down the client's current Debitsuccess contract by using the 'Remove DebitSuccess for Client' button found within the client's Debitsuccess profile. However please note that if you do this then the client will be charged a new 'Establishment Fee' when you add them back in to a new contract.
Related articles:
Add client Card/Bank info with Debitsuccess
How to process a once-off Debitsuccess payment
How to setup a recurring Debitsuccess payment
How to setup a recurring Debitsuccess payment linked to a membership
How to create Memberships (using different Debitsuccess contract types)
Understanding different Debitsuccess fees
How to check your Debitsuccess payment statuses and adjust schedules
Managing payment suspensions in Debitsuccess