I have bought a package coming from the US to the UK, and I have been tracking it's journey every now & again to see how it is doing. I had read that Glendale Heights was an international hub for Ebay, so I was glad to see it had gotten there however, when I had checked later, it has seemingly returned back to Carol Stream IL? It had already departed there for Glendale Heights. Is this just a tracking error, or would there be any reason why its gone back to where had already been previously?