Well, if you're a new user, then you probably didn't get coins with your acct. I joined in 2007 or 2008, so I was given 20 free coins with my account, which have LONG since been used up. I've bought some too, since that, but they no longer sell the coins. They don't award new collectibles anymore, but the entire program officially ends on April 15th, meaning we won't be able to send each other collectibles anymoar.
We got awarded collectibles each time we visited the ICHC sites daily? They started sometime in 2010, and they just ended the program on Jan 15th. We all have until April 15th to finish the colleckshuns and send each other missing ones to help them. The extras of those two sets were a glitch that several of us got in. lol.