Well, fuck all that I said. Happyshops didn't put my full address on my package, so it couldn't legally be delivered. They forgot to put the state on my address from what I understand.
Turns out the exact same thing happened to my package!
Name, street and town were written on it but NOT the actual number of my house. At first I thought that GLS was trying to bamboozle me (they kinda did and I had to call them) but if you had the same problem, maybe it's happyshop that's to blame.