I tried the following routing, AA DXB ratedesk rated it OK but when the US RTW desk tell me the price, the agent (superviser) said it is invalid and void my reservation. I would like to see are there any way I can ticket it , maybe with other carrier.

Here is the itn:
MAN-LHR-ACC/o-LHR-ORD/o-USA/o-HKG/o-ASIA/o-HKG/o-LHR/o-CAI/o-LHR-MAN

She said per rule by Going to Ghana I am entitled two inter-con departure and arrival but no exception of the "1 international departure and arrival at country of origin".

I questioned that I am only transfer and this cause problem with ex-UK going to Africa since only BA fly to ACC and only via LHR. She said "Yes, you cannot goto Ghana and Cario ex-UK, this is the rule".

So, any way to get around it? I know I can do ex-CDG for US$500 more, but want to know if I can do this without the $500 extra and problem with my schedule.

THANKS!!