Add, change or remove a credit card on a mobile subscription Mariliam - April 18, 2017 09:06 You can edit your payment details on a mobile subscription by going to the respective Google Play or iTunes store settings. Android users can find instructions here. iOS users, please refer to these instructions. Related articles How can I update my credit card information? How can I cancel my Viki Pass Web subscription? How can I renew my subscription? How do I cancel my Android subscription? How do I subscribe to an Annual Plan?