On Sunday, With a 16-25 railcard attached, all journeys in zone 1 and 2 except for one tube journey from zone 5 to zone 1, the total for the day was £7.65. How can this be right, when the cap for z1-2 is £4.60 and the z5-1 single journey is only £2.05 on its own? What should the total have been? And is the only way to get refund from Oyster still through the phone line? Thanks so much.