Half tiled bathroom and now I'm stuck, any advice?

[dominictoretto]

We started a bathroom refresh a few weeks ago thinking it would be straightforward, but the tiler walked off the job halfway through and now I'm left with a half finished wall and no idea what to do next. I've had two other guys come look and both gave me completely different stories about what needs doing, which has left me more confused than before. A friend told me to see more details about how a proper bathroom remodel should be sequenced, because apparently the order things get done matters more than I realised, and that might explain why the first guy got stuck. But I'd rather hear from people who've actually been through this. Has anyone had to rescue a half finished job? Did you have to rip out what was already done or could it be salvaged? I'm trying not to panic but the bathroom is unusable and I'm running out of patience with the whole thing.