Sustaining subscriber for one email adress only?

I’m a sustaining Pushtokindle subscriber. My last purchase for a one year subscription was in February of this year. Why do I receive a message about having to purchase «email credits» on my other email? Is the sustaining subscription only linked to one email adress from which I can send articles to Pushtokindle?

Hi Joakim,

Sorry about that, you can use the same code with up to 5 email addresses. Simply enter the code you received by email into the field when you get the email about low/no credit.

You can find your code either by finding the sustainer purchase confirmation email. Or log in at http://member.fivefilters.org/ with the email address you used to place the order.

Let us know if you still have trouble.