That price difference spoilt my chances of going to South Africa to visit my parents for holidays

.. Instead they came here to Chennai, paying for 2 just about the same amount that I would have paid to go alone from here.
Is there any loophole or a way around this? Can you get the fare of JNB-MAA-JNB trip for normally the more expensive MAA-JNB-MAA trip.. I don't mind if the ticket has to be paid in anyform in any of the two countries..
Please Share any knowledge...
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Cheers,
VizMaX