Because I bought the iPhone app for TomTom at the time, I received an offer for 3 years free use of TomTom GO Mobile. I want to use it now, but I don't get it activated. Contacting TomTom is not possible. My devices and apps are not listed on the Contact page and I cannot add them. An e-mail address is not shown. I can only use Facebook and Twitter. I don't have either. What now?