If you are based in Europe and buy a RTW Oneworld Explorer fare in another continent you can get up to 4 free segments in Europe.

However.

ADDITIONAL FLT SEGMENTS WITHIN EACH CONTINENT - EXCEPT CONTINENT OF ORIGIN- MAY BE PURCHASED AT A CHARGE PER BUSINESS - USD400/AUD500/GBP200/HKD3200/EUR300.
OR
ECONOMY - USD150/AUD200/GBP75/HKD1200/EUR100.

Can you buy these additional segments after the original ticket is issued ? Would it be a $75 fee each time to insert a few additional sectors.
If the AONE5 was issued in South Africa what currency would they use ?


If you can do this an unlimited number of times it seems to be an excellent way to do lots of UK-Europe round trips throughout the year.

For example the round trip BA Club Class fare to many European cities is 500-600 UKP.