Can't buy ticket online, is it a phone thing.

[80sCasual]

I'm trying to get a ticket for the Leicester game online but via my phone and am unable to. Also checked the Boro game (of which I don't need one being a ST holder) but still no option to see the ground/choose ticket etc.
Is this just on phones this happens as if so I'll wait til I get home.
I hope the ticketing site doesn't have a problem as this may stop people who live a distance from the ground from purchasing and may affect our attendance people not bothering to turn up if they haven't already purchased a ticket.