In [My profile] > [Hongkong Post Account] > [Postage Prepaid Account], you can choose the postage prepaid account number from the "My Postage Prepaid Account" list on the left, and then click "Dissociate this PP Account from EC-Ship" in the postage prepaid account detail section. Finally, click the "Dissociate" button in the confirmation dialog to complete the dissociation.
You cannot cancel the dissociation once the linkage is removed successfully. If you would like to associate the permit account again, please click the "PP Account Association" function again.