Am compiling documents for my visa application and I read that I need to present go and return flight tickets to prove that I will return at the end of my visit. Then a while ago I got to know that I can just get a flight reservation with out buying the flight tickets because the visa application can be refused and you have already bought the tickets. So l request to know which of the two , having a flight ticket or flight reservation is more compelling to the visa officer and more convenient me because I would buy a flight ticket and my application is refused
No. UKVI guidance specifically states that travel arrangements should not be made prior to receiving your visa.
Section 4 of the UK government's Supporting Documents Guide for Visitors lists flight and hotel bookings as documents that are NOT required to be submitted with the application:
Documents you should not send unless specifically requested.
This section provides guidance on the types of documents that are not required to consider your application.
If you present documents that are not required you may give the ECO the impression that you don’t understand the rules or didn’t bother to read them.