It isn’t currently possible to use your Dozens card to make payments over the phone. Any payments attempted over the phone will be declined as a ‘card not present’ payment. We understand this can be frustrating, but the reasons behind it are for your security.
‘Card not present’ payments can include both online and over the phone payments. The reason online payments where the card is not present are acceptable and will go through is because there are additional levels of security like 3DS (in the form of verification steps) provided for online payments that are not yet applicable for payments over the phone.