If you ordered it from the States and used USPS it can take up to 3 weeks no matter what priority it was shipped under. I can see the word "Aquabee" raising a flag at customs
If it's already shipped you'll have a hard time canceling the order, I would just wait for it to show up. Your tank isn't going to fall apart without a skimmer for a couple weeks, good time to catch up on water changes.