When you place an order with Grouphunt, you will receive a unique Order Number, for example 40382. This is the Order Number you will require when booking a self-collection slot or to quote for enquiries, and you can find your order number at your Order History Page.
PayPal have a receipt number eg. 1234-5678-9101-1121 that should not be confused with your Order Number from Grouphunt. We do not have a need for this set of numbers :)