need some advice

I received an email over a week from an editor from a well known publisher wanting to discuss one of my stories. It sounded really promising so we set a call time.

Anyway the time and day we agreed on passed, and I heard nothing. I sent an email informing them I wouldn't be available the next day, but I decided to not say anything about having not heard anything. So I got a email reply almost immediately saying they had a minor family emergency earlier in the day, which is why they never called, and they wouldn't be available the next day either. Why they didn't email me about this I didn't understand as there had been ample time between our agreed upon call time and the time I emailed. But I didn't say anything.

So two days have now passed since our second agreed upon call time. I have heard nothing. I sent a email, being polite, suggesting maybe we should correspond by email although I would still be available to discuss things over the phone. Still no reply.

I'm getting majorly frustrated. I understand things come up, but if they're dropping the ball this much this early in the negotiation phase, then I don't know if I want to work with them. My communication has been with the senior editor for this publisher and they're well known, so I know they're not a scam, but seriously?

They've already informed me they don't work on Fridays, so who knows when I'll hear anything, but this seems completely unprofessional, and I'm pretty much over it. I don't want to do something hasty, but I'm considering withdrawing my manuscript and shopping it elsewhere.

Great advice Thanks for the input. I'm just annoyed that twice she's missed a call time and not bothered to update me as to why.
I still haven't heard anything. But onward and upward. I'm working on something else, so I'll just continue to play the waiting game.

I'm just wondering is this sort of thing common. I understand that a lot of this business is playing the waiting game, but I'm still hearing nothing. So is it common for editors/agents/what have you to approach you about something and then not bother to follow through. I see frequent complaints from editors on Twitter about writers being unprofessional, but aren't we allowed to expect the same courtesy?

I understand a lot of this is a waiting game. What I'm not understanding is they approached me, asked me to set up a call time and then they didn't follow through. Twice. This isn't just about some general slush submission that I'm bugging them about the status of. As for the reputation of this publisher, let's just say it's a well known romance publisher. Very well known.

Sorry I haven't updated. My manuscript has sold. We're onto discussing revisions, contract terms and future ideas. The editor has been very apologetic and super sweet about the lack of contract. And believe me for everyone who has expressed concern, trust me, this was never a fly by night publisher. This isn't my first rodeo. I'm well aware of scams and this was never one. When I say well known publisher, I mean well known publisher. I was just frustrated with the lack of contact and that has been satisfactorily acknowledged.

So thank you everyone for your opinions and concerns.