Don't put too much faith in the USPS online tracking system. I have had orders in my hands when the tracking information still said they were awaiting overseas shipment and another time still at what I believe was Customs. Other times the tracking information was so correct that it was freaky. I went to my mailbox and checked my mail once and nothing was there. I came back home and no more than about 15 or 20 minutes later the tracking information said my package was delivered. I was sure it went to the wrong mailbox, but I went and looked and sure enough it was there. I ordered a pipe from a shop in BC and I was smoking from it while reading the tracking information that said it was somewhere in Washington (State). You just never know if the tracking information is accurate or not.
Not that it would matter with what the tracking information said, but when you said it has been eight days, is that eight days or eight work days? Days postal employees have off cannot be counted. Attitude says 7 to 10 work days for oversees shipping. Days off on weekends and holidays, both here and while Royal Mail has the package, are not part of the 7 to 10 days.
Your order will arrive, so just have patience. Rome wasn't built in a day, and neither was Syracuse.