How come I don't get the daily delivery's anymore, after the first 30 days that I joined the game...

We already have an answer for a similar question which you can see here:
Why did I stop getting the daily delivery from the truck?

If you have more answers to add you can do that below.

It's only around for a limited time, it is not ongoing. The only ongoing free gift is the one located with real money purchases, which is a much smaller daily gift.

Been too long since I joined to be certain. However as I recall, daily deliveries were only for your first thirty days. That is why you stopped receiving them. Register for the weekly news letter and be sure to collect the daily gifts when you look at their featured sale program. May have to scroll left to get to it, but always worth the time.