Originally Posted by long legs

I booked a flight from Asia to Europe and back with CX, BA and IB. BAEC shows me that I will earn 23,747 Avios with my flights which, according to their earning rules, seems to be rather correct. For exactly the same booking, IB+ promises me 26,241 Avios although the earning rules are exactly the same as on BAEC. Now I am wondering if I should get the Avios credited on IB+ instead of BAEC, or if the extra Avios that IB+ promises are just due to a faulty programming of their website.