We take extensive care when packaging our star maps for shipping. Our unframed maps are sent sturdy cardboard tubes and our framed maps are protected with bubble wrap, so damages to the product are very rare (under 1%).
However, if this happens to you, we are happy to replace it, free of charge. Please send us an email at firstname.lastname@example.org with your order reference number and photos of the damage and of the packaging as well, so we can investigate and prevent this from happening again. Please note, make sure not to mark your Request solved before we get to answer you. :)