since obviously dthadmin ist absent: I have licensed all versions of DTRegister including the versions released until 4th of February 2013.
Current Version: 3.0.1 (J3.0) / 2.8.5 (J2.5) / 2.7.22 (J1.5) - (updated Jan 28, 2013)
I cannot access the corresponding download links anymore although I have been paying for the versions released until 4th of February 2013.
It is clear that I will not have access to further version numbers without renewal of licenseship for one more year. But I expect to have access to the versions released within the one year I was paying for.
During the last months I have not been working with Joomla. That is why there was not any reason to download DTRegister before today.
Unfortunately that isn't how subscriptions work. When your subscription is up there is nothing I can do. It's impossible to manage thousands of customers and provide a download of the software on the day they expired. This year we will be upgrading our billing software and hope to put reminders in so it can be a proactive tool for clients.
Your point of view even would mean that i.e. nobody was allowed to make holiday for several weeks without risking not to get the updates he had paid for when the license period ends during his absence.