Prior to applying for the invitation letter, you should be aware that you will need a few things to begin. To have the ability to compose a very good invitation letter, you can stick to the tips below. Your invitation letter will be prepared within six hours, but you need to pay 50$ for it. Your paper itinerary doesn't need to match a true itinerary. There's no particular process of the way to compose an invitation letter. If you have opted to send a normal letter, think of what paper you must pick.