Surveillance capitalism in early cyberpunk

I've recently started rereading Count Zero by William Gibson. I'm a few chapters in, but the lack of cellphones seems like an anachronism. One character has a phone, with a screening program, but it's bound in location to an apartment. At one point she has checked into a hotel and wonders how her new employer could have known, but that would be easy to guess out in today's surveillance capitalism given that she was tapping her employer's expense account along the way and presumably into the hotel. She eventually clues in that money itself was tantamount to a lifeform and was watching her. Elsewhere, another character decided it was best not to use his credit chip lest he be tracked. Maybe he was simply more street smart about how people could be tracked.