You must use your My Arsenal Rewards Prepaid card when purchasing your items, your prepaid card will look like the below.
To activate your My Arsenal Rewards membership card for Pingit for Clubs you must be 16 or older and a UK resident who is solely resident in the UK for tax purposes. A UK personal current account is required to register for Pingit for Clubs. If you choose not to activate your My Arsenal Rewards membership card for payment, your card will still provide access to Emirates Stadium.