How long does it take USPS to pass a package through customs?

My package was sent from US on 31st July, i was provided a tracking number, its been four days now and the tracking status is still the same, this is what says when i enter the tracking number...



Label/Receipt Number: **** **** **** *

Service(s): International Letter

Status: Electronic Shipping Info Received



The U.S. Postal Service was electronically notified by the shipper on July 31, 2011 to expect your package for mailing. This does not indicate receipt by the USPS or the actual mailing date. Delivery status information will be provided if / when available. Please be advised tracking is not available for this product. Information, if available, is updated periodically throughout the day. Please check again later.



Should i be worried? Its supposed to be delivered to UK.How long does it take USPS to pass a package through customs?
the tracking number that you were provided is not an actual tracking number. It doesn't get scan. It's only a number that is required by Customs.



Electronic shipping info received only means the sender printed out the label. Usually interntional letter will take about 7-10 business days, depending on Customs in your country.

myrtle

carolina skiff