Using the same mobile phone number or email address you used when creating your account, log in here (www.client.paypaplane.com).
Click 'Manage' on the payment arrangement in which you wish to amend a payment date.
Scroll to the scheduled payments and select the scheduled payment with the date you'd like to change.
Click the calendar to view the withdrawal dates available for that payment (the number of these will vary according to what the Merchant has allowed).
Select the new preferred date and review the ensuing information regarding the change (New Debit Date, Amount and Date Change fee).
Finally, confirm the details of the payment date change by clicking 'SAVE' on the bottom right of the screen.
You'll now be able to see the date has been changed for that next single payment.