How long may I save my purchased Credits? Melissa Carron May 03, 2018 19:59 Updated Follow Purchased credits never expire. If you are on a monthly plan, your credits reset at the end of each billing period. Related articles How much do incoming text messages cost? Can you forward incoming texts to my personal mobile phone? Do you charge any fees? Am I required to sign a monthly contract? Comments 0 comments Please sign in to leave a comment.