It's frustrating! I'm guessing that my on-screen reservation detail are by now loaded with unhelpful comments from my previous sessions. I tempted to give in, get my cash back an rebook with another carrier: but I'll first re-gird my loins and pursue the case with
Chris63's suggestion of the F-line.
I've had tons of changes to make in the last 12 months, mostly with BA and Lufthansa, but also with Turkish. My observations are anecdotal, statistically irrelevant, but I'll offer them:
TK interactions can be testing with dodgy communication issues, but they proactively offered to switch a cancelled Egypt flight to anywhere in the middle-east for any date until December 2021: top marks.
Lufthansa improved significantly after my initial March cancellations took 4 months to yield refunds - one of them only under cash-back enforcement. The nonsense they kept trying about a £44 bonus if I accepted a voucher for a £1000++ ticket began to grate.
BA has, surprisingly, outperformed Lufthansa in the clarity, scope and implementation of its Covid response policy. I have been struck by how much more willing BA agents have been to help, dig deeper, make an effort, although I've had a couple experiences with BA's Indian and UK call centres where it was clear that agents had simply not got the message.
Thanks a lot Chris63: inexplicably I missed your earlier post