In order to make things easier for you, Live Your City automatically saves the payment method you use in each purchase.
Deleting your saved payment methods is as easy as going to your Profile in the website, tapping on the profile icon on the upper right and then selecting "Profile" click on Account details and you will see the option “Payment Methods” and clicking on “Delete All” will erase them.
You can add a new payment method at the checkout on a new purchase.