This article explains how and why sometimes credit cards are declined when users are trying to purchase a subscription to Dubb.
There are multiple reasons why your card might be getting declined.
wrong expiration date
wrong CVV code
wrong zip code
Additionally, it is possible that your credit card company is declining a charge for a security concern. We recommend contacting your credit card company and asking if there is some sort of a block on the charge. Often times they will be able to explain why the card is being declined. If you still have an issue purchasing a subscription to Dubb, please report back any new findings.