I want to book LHR - SIN - HKG - LAX - ORD - LHR, so far no issues except need to do all this in 8 days and I seem to recall there is a min stay of 10 days. Its not feasible for me to stay longer in ORD etc as have to be in London for a wedding. Can I just add on a future leg eg LHR -DXB or am I knackered and have to pay full fare ?

Many Thanks