As my private message said to you as well, it just looks like they marked packages they actually didn't ship as "shipped." By doing so that erases your address from the vendors page. Therefore, they are now canceling multiple orders that were marked as shipped but never actually did since they do not have your address any longer. This method can't stop a vendor from copying the address to their computer once an order is received. But I see no evidence that this happened from the vendors message.