There was an issue with an update of the contact form, so that it couldn't be submitted. We cannot say for sure how long it was broken. Who has tried to send a message through T³ in the last 7 days and has not received a reply yet, should send his message again... just to be sure.
As a general note: All actions on T³ get confirmed by appropriate hints. If a confirmation is missing, something probably went wrong. Please inform us about such an issue asap. Use the contact, Facebook, Twitter or whatever message possibility is at your hand.