I wouldn't feel real comfortable if after 6 days I still couldn't track an item by the UPS tracking number. I have had items shipped from China via DHL and the tracking number shows up usually within 24 hours of when my supplier said he sent the product. The only time I couldn't track an item was when it was coming from Singapore Post to the USPS. The tracking number from Singapore Post didn't translate to a USPS tracking number. In that particular transaction, I did get my merchandise, though.