I find I'm buying less and less flights these days but those I do seem be more complex.

Have an opportunity to buy 4 x LHR-BKK return business tickets on QR and I'm looking for advice as to the most productive way to do that ... miles, points, tiers etc.

Had BA Gold since day 1 but Blue for the last 4 years or so. Am about 4k miles off GGL but no longer a twice weekly flyer. My BA account is linked to QR and have had a couple nice QR First tickets recent times.

Essentially I am looking to buy 4 full tickets .... one for me, one the wife (who has her own BA account) and then two other adults. Would hate to spend and find I missed a trick so keen get advice from more expert hands to get the best out of the scenario. Appreciate any help in advance