hi I just ordered a wildrok bubbler but I made a mistake with the name of the person that is going to receive the product and grasscity told me they could not change it now because the order was already packed... I order the product for a friend via standard international mail.. by this method we need to sign upon receipt? the problem is that the product will be shipped to another city not mine! if we don't need to sign anything I guess my friend could just talk in the porter's lodge in order for them to accept the package to my name.. is that possible? thanks