Requiring Zip Codes in Online Purchases

Hello everyone,

Does anyone know how to make zip codes a required field in the online purchase path when entering a card? We are running Tessitura & TNEW v15 and use WorldPay as our online portal. 

We have recently had a wave of chargebacks filed as fraudulent. I spoke with our credit card provider and they suggested adding a required zip code field to cut back on the fraudulent chargebacks and make fighting them easier. According to them, banks consider the billing zip code to be another form of authorization that cannot be found on the card, which combats stolen cards. We currently have the CVV as a required field. It is clear the information used to create an account in TNEW is not imported into WorldPay, so patrons would have to re-enter it when entering the card.

Any thoughts about adding this field or fighting these chargebacks is greatly appreciated.

-Luke

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