What happens to my credits if a fax fails? iFax Support December 28, 2017 10:08 Updated Follow Your credits will automatically be refunded back to your account if a fax fails. You can reuse those credits to send a fax anytime. - iFax Related articles How do I make sure that my fax is delivered successfully? How many credits do I need to send a fax? How do I cancel an auto-renewal subscription? How can I receive faxes? Will my credits expire? Comments 0 comments Please sign in to leave a comment.