Deep breaths! Ok so a handful if things.

Firstly mindset. Manage your expectations- my grandpa would have said “predictable, preventable but inevitable”. Yes ideally you wouldn’t go through all this but we both probably know full well it’s a large company and it may take several calls from you to resolve. Decide whether youre up for that as you can just walk away.

Assuming you want it sorting, the positive is those points have posted now so everything that is going to happen has happened! I would now try calling the Exec Club again and saying you did pay for an upgrade but it seems its been processed on basis you didnt and now these bonus tier points are wrong and secondly can they think again about the 5k Avios for the bags. I’d say push for the correct TPs but maybe just chalk wait for luggage down to “it’s BA in 2024”.