Finally had the 50K miles redeposited which I had used (from my account) to upgrade mrs t from YFlex+ to J on a flight early March we had cancelled. Cash refund took about 12 days, but to get the miles back took 25 working days plus 4 live chats with very friendly and helpful agents. Now finally back in the account so all good. Had one CPT/DXB/LHR flight since then (including drone alarms and train station sheltering). Next one only in September. Hope it will be boring….