You can change the payment method for your booked WMS and POS licenses in the Pickware Account under Billing → Payment method. You can choose between credit card and SEPA direct debit. Under certain circumstances, you can also pay by invoice. In this case, please get in touch with us.
If you want to switch between monthly and annual billing, you can do this under Billing → Plan & device licenses.
Then complete the process via Checkout at the bottom of the page.