Good luck with it.
Since July I have

• Spoken with Silver line 5 times
• Tried and failed to use the web portal (125- refs not recognised)
• Responded to two request separate emails, each a month apart with my boarding cards and booking / billing emails
• DM’d BAMissingAvios on here - no response
• Raised a complaint
• Uploaded the images to the uploader site (unsolicited, but quoting case refs)
• Checked with chatbot on case and complaint (you’re in the queue…)

Today marks my BAEC anniversary date, so I assume they will not credit to the short-year totals .
Imagine my continued delight in receiving BA’s daily spam offering ways to ‘boost my Avios….’