Refund Policy

We are confident MLREGEX will learn the most optimal regex for your input strings. If it does not, we will refund you the cost of the specific learn event. Please read the refund conditions carefully.

Refund Conditions

We will refund you the cost of your specific learn event, in the form of credits added to your current balance, if the following conditions are met:
  1. You have allowed us to save your learn event input strings and regexes, with the checkbox provided when you submitted your input strings, for the original learn event on this site.
  2. The Significant Length of your submitted more-optimal exact-match regex must be less than the Significant Length of the most optimal exact-match learned regex, of the particular learn event.
  3. The "Significant Length" of a regex is computed by counting only the original input string characters that appear in the regex.
  4. The most-optimal regex is the regex with the shortest "Significant Length".
  5. Your more-optimal regex must match all and only your original input strings (i.e. an exact match), for the particular learn event.
  6. You must submit the challenge within a week of the learn event.
  7. You must log into this website and submit the challenge on the Challenge Page.
  8. You must submit your more-optimal regex.
  9. You must submit the Learn Event ID string, appearing in the original learn event result email, sent to you from this site.
  10. You must have an active subscription.
  11. These credit refunds are only available for your current month of subscription.
  12. These credit refunds are only valid while you are an active subscriber.
  13. You may not submit an already submitted regex (by you or any other user).
  14. Suspected misuse of this refund functionality will cause you to be blocked from using it and any credits will be cancelled.
  15. In your submitted challenging regex you may only use:
    • \d and \w character classes,
    • character ranges in []
    • quantities in {},
    • The special characters: '.', '*', '+', '?', '^', '$', '|', '(', ')', '[', ']', '{', '}', '\'
    • You may not use any other special character.
    • You may not use character code escapes, e.g. "\u1234".
  16. You can only use constructs that are executable by the .NET regular expression engine, as well.