The call centre staff seem friendly but have never successfully resolved any of my issues. It seems they have little in the way of technology to interact with the docking stations; they just rely on out of date information.
For example… I could not get a bike from Lambeth North the other day, it seemed to me that the reason was the docking station had lost communication with the central brain and was not able to check subscription status. The call centre had no useful advice and were unaware of the state of the docking station (i.e. if it had called home recently etc).
In the end I relocated and found a docking station that was working.
IMHO Polite but pointless.