We highly advise you to inform local authorities if you have seen illicit conduct or a crime. The police will want pertinent information from you, such as the profile of the individual you communicated with on OfferUp. They may also ask you to provide any documentation that proves that the seller is who they say they are. You should not pay anyone until this has been done. In some countries, for example, Canada, buyers can return products that weren't as described. In other words, if a seller claims an iPad mini is in perfect condition when it's actually broken, the buyer can return it. The retailer then has the option of either repairing or replacing the item. If they choose to replace it, they will usually reimburse you for the price of the device plus any shipping costs. In other countries, such as United States, there are no laws protecting consumers against purchases that aren't as described. If you buy an item that isn't what you expected, you have two options: you can keep the item and seek compensation through the courts or return it for a refund. If you don't take action, you are giving up your right to sue. In conclusion, if you buy an item that isn't as described, get all the details in writing before you part with your money.