Does anyone know what British Airways view is on moving Redemption flights on a death of a family member (Aunt)? I really want to attend the funeral (date not set yet) but there is no reward availability in F or CW (or even WTP) around the dates myself and wife are travelling to Sao Paulo?

Would BA even entertain the option to move the flight (happy to pay change fees) even if rewards seats aren't' there in CW for a given day? There is lots in economy so there are options but I'll really like to travel in CW (or upgrade to F if needed).