Due to the fact that the Flowcode trial is fully featured, the software will continue the trial and then revert to the purchased licence once the trial has complete (the trial has more options - has everything) so the trial runs "to term" then reverts to the purchased licence.
If you would like to check that you have added the purchased licence correctly. then disabling or unplugging your internet and loading Flowcode should revert to the purchased licence automatically while offline.
Alternatively if you would like to have your trial disabled, then please contact Matrix and we will be able to disable your Flowcode trial and your purchased licence should be active.