I am just a little concerned by this. Over the weekend 2 - 5 February I stayed at the Premier inn opposite Dalston Junction and a short way to the right, across the road. I am not disabled but am a very overweight barrel of a man, with a top speed only a little above the top speed of a woodlouse.
Each morning 3 - 5 February I bought a Travelcard at Dalston Junction although on some days I used it as much on the buses as the trains. I was amused, perhaps very slightly annoyed, that although the ticket office was manned, mostly by two people I think, a notice on its window requested passengers to buy tickets from a machine rather than from the office. I managed to use the machine although it argued with me until a banknote was its preferred way round and up.
It was annoying that the lift was not working, but I managed the 36 (I think) steps down to platform level. On the Saturday and Sunday, only the bay platforms were in use.
On the Sunday evening, I managed to heave myself slowly up the 36 steps, by the handrails. A charming member of staff was doing his best to be helpful, although nothing he could have done, short of changing the stairs into an escalator, would have helped.
On the Monday, the through lines were working again so I got a DC train to Highbury & Islington, where the lift was not working so I doubled back on the same train to Canonbury, where the lifts were working, enabling me to change onto an AC train towards Willesden Junction.