Our buy 4 items and shipping free discount only applies to customers residing in the USA and CANADA. All items will be shipped within 3 business days after payment is received through PayPal. Our shipping method is US Postal Service Priority Mail for US addresses and First Class for all others unless specified. You should receive your items in less than 5 business days USA and 6-10 business days everywhere else. Any further assistance you can call on us from 8:00am to 5:00pm (Eastern Standard Time). Thank you and enjoy your shirt.