Bought three tickets when Amex opened was going to book in west middle but my two sons were under 18 and under 21 and couldn`t get discount for them so bought adjoining block where junior tickets were cheaper. Now I`m an over 65 so get cheaper ticket and sons working Adults so paying themselves...
99% sure you are wrong because Zone E for European games is what normally is west lower middle where there are no reductions. Your season tickets are East stand where young and old do indeed get reduced prices.