You can do this under My Västtrafikkort on My Pages. You will receive a receipt by e-mail. If you auto top-up a period card, you must cancel no later than eight days before your current period expires in order to prevent the next payment being taken. If you auto top-up a pay-as-you-go card, you can cancel at any time. Cancelling Auto top-up takes up to seven days. After seven days you must present your Västtrafikkort at a card reader on a vehicle, at a ticket agent or in a Västtrafik shop in order to complete the cancellation process. Once cancellation is complete, it can take up to 48 hours for the status of your Västtrafikkort to be updated on My Pages.