This is a very similar environment to the penopticon, glass walls everywhere so you're always on show. Managers timing how long your toilet breaks are. Aside from that 'colleague services' is a total mess, it's very stressful, callers are very rude and entitled, my role changed without any concern for the fact that my skillset did not lend itself well to a pay query role. As such and understandably so, callers (who for example hadn't been paid in 2 months) were vile and very difficult to deal with. A company really shouldn't be so bad at paying their employees, it's criminal in this day and age!
Promotions or progress in general is impossible and after a few years trying to move into a role that I was good at and being blocked by my frankly 'feckless' line manager, I gave up and found something much better. Really bad experience, don't work here.