Can't use Contact WPMU Dev Form - says Image Captcha Validation Failed

Reference: https://premium.wpmudev.org/forums/topic/cant-renew-membership-with-special-offer-from-upfront-release#post-831568

So I have created the message, and have DEFINITELY put the same letters and numbers in the box on the page (see screen shot on next message as this one doesn't have anything to click to add the link to the screenshot) but I get an error message repeatedly that says "Image Captcha Validation Failed".

Now what?

Mary :o(