​​​​I’m hoping someone can help. I am near a tier threshold and the end of my membership year. I took a return Cathay flight from London to Hong Kong earlier this year in business. I was credited with 140 tier points on each as expected but also separately credited with another 20 points for the outbound leg. So in total I earned 300 points instead of 280 which I expected. This 20 points will enable me to make my next threshold and I’m worried that it might have been an error which BAEC might reverse.

Has anyone received a mystery tier point bonus like this before? Thanks.