It's common skill mainly used my Nigerians. They send through fake proof of payment and assure you it will clear. They send you a fake proof of payment and request an Uber for pickup. As long as the payment does not reflect in your account... Don't allow your goods to go. Simply rule
Its best to stick to MTB Trails (Private) or be on the road (atleast) than to ride in open field alone. These guys operate as a syndicate and target these spots were its common to find cycles. Im sorry JJacobs, will be on a look out.