-About the delivery date- 2-3weeks 5-7days You can confirm the delivery date from your order history. -Return Exchange- Technically, request for return or exchange is not applicable. Action can be taken for deficient products if you contact within 5 days. -Delivery Slip- Our store works on paperless. Basically no receipt, no invoice and no delivery slip are issued unless you request. Please feel free to contact us if you need those documents.