Long ago, when Cataclysm was the newest expansion that Warmane had, I donated to the server to be a premium member. I wanted to be a premium member to be able to pass through the 2000 queue.. And it worked, i could pass the queue anytime.
Now I still have a premium account, I still have some coins on it, but i can't pass through the 750 queue that Lordaeron has, and I have to wait almost 45 mins. Why is that? I paid to be able to get through queues..
Lordaeron is not like other realms, for a long time you were not able to by-pass queues at all. Now, you are 30 days exempt from them if you donate at least one item on that realm. A green message like "Note: This purchase will also grant a 30 day queue-skipping benefit on Lordaeron." will appear on the purchase confirmation if that item grants this to you.