My key became unusable last night. I thought it was a software glitch at the two full docking stations, but this morning I was able to check with another user who was successful where mine would not fit.
On phoning the help number, I was told that one would be dispatched immediately but would take 3 days. I would not be able to use my registered card to buy day tickets, but should use a different card and they may consider refunding me for the days I don’t have my access key.
The call centre is in Enfield and they do not have anywhere in London for swapping damaged keys for new ones.