Please email us right away at info4@ampinvt.com indicating your Order Number so we can assist you quickly. We will check your order in our system and if it still hasn’t been processed yet, we can still make changes. Incorrect shipping address: Please contact us right away. We process each order 3 to 5 working days, so if your order/s happens to be dispatched already, we won’t be able to grant your request. Incorrect size/model: Given that the item is already shipped out, we can't make amends for it. Once you receive the product, please send us an email at info4@ampinvt.com stating that you have received it. We will let you ship it back to us so we can exchange it for the correct item that you want. Please note that the shipping cost is shouldered by the receiver.