Originally Posted by KARFA

any charges for voluntary changes are not refunded.

Originally Posted by corporate-wage-slave

Change fees are not refundable except in limited circumstances (e.g.when the fare rules allow for free changes but BA.com charged you anyway). But yes, your ticket falls into the category of "complicated", though I appreciate it wouldn't be so in almost any other consumer context. So if after a couple of weeks you have not received your refund then you should be OK to escalate via the BA Refund Helper after that point. I'm told that some refund specialists in India are now back at work, which hopefully will improve the response time.