Are the collections random? Or can you choose? -answer is Yes.

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The site keeps logging me off. It's pissing me off a lot. I want to punch my computer screen cause it's logging me out every 5 minutes. sorry for caps but HOW DO I GET IT TO STOP LOGGING ME OUT!

You can choose the item you want from that collection.

Awesome! Thank you for being Awesome x3

for the constantly being logged out you need to post in the Bugs Forum and ask them to add your name to some list. It has to do with your IP address.