u/Saline-Praline

I am travelling with my partner from Stansted Airport to London using a two together travelcard. Our inbound and return dates are different and I want to buy a standard open return ticket with the railcard discount. This is not available on the Greater Anglia page. Does this ticket exist? How can I buy it?

Are there any technical specs that need to be met for usb-c charging cables for Macbook Pro's? Apple sells 60W and 240W cables, is this important for charging?