We appreciate your interest in upgrading to Plus, if you're having any trouble completing your purchase please consider these common problems.
Do we accept the accept the credit card you're using?
We use the payment service Stripe to accept the following payment methods:
Have you entered the correct payment information?
Double-check that you didn't mistype your credit card number, expiration date, security code, etc. on the Upgrade page.
Is there an international restriction on your credit card?
Momentum is based out of British Columbia, Canada. If you are attempting to upgrade from outside of Canada, your card might have an international restriction on it.
This can be resolved by contacting your credit card provider, and asking them to remove the restriction. After you've requested that try upgrading again.
Still having problems upgrading?
Send a message to firstname.lastname@example.org and tell us where you are stuck.