I see your point.
Just being extra cautious because the amount is so high. Again, i'm happy to show any images once a mod hops on the thread.
I'm literally in tears over the prospect of not knowing where my 600k is.

If it's still a one-man operation as per this post, then it's possible that there might be something that requires manual intervention on their end (read the subsequent post in that link). You can come up with a variety of reasons for why this might be the case, but conjecture wouldn't help in this situation.

I'd like to wait and see before jumping to any conclusions directly, although the wait time is definitely not something that should be happening regularly.

Sent. For the record, someone could probably find the exact transaction details from the image you published: with just an address and a transaction amount/time, anyone using the public ledger would most likely be able to pinpoint it within minutes.

Make sure to remove it from the image-hosting service as well.

In the case of any verification, you can do what I said and sign a message. If you sent from some service, there are most likely ways to prove that as well - for the sake of your privacy, I think obfuscating the transaction details is fine. Once they reply, then you could disclose it discreetly via PM.

I see several crucial mistakes, and I'm going to point them out because I really don't get why people keep doing this:

Mistakes made

• Depositing before downloading, saving and verifying the Letter of Guarantee
• Sending a large amount of Bitcoin to a relatively small and unknown service
• Sending your entire Bitcoin savings at once to a third party
• Keeping your life savings entirely in Bitcoin

All of this means you literally have no proof whatsoever to backup your claims, while you could and should have had a signed message. But even then, a one-man operation could be very tempted to take such a large (and for many people life-changing) amount of Bitcoin. Selective scamming has happened before and will happen again. It's trival to add an "if amount large enough, then don't return it"-setting to the server routines.

I'm following this case to see how it evolves. In a similar (but much smaller) case the mixer said the funds were sent to a different address:

There is no "team", just one guy. All you can do is wait for him to (wake up and) respond.

Writing again because the 24 hour window expires in 4 hours and although I've sent countless emails I haven't head back from MCM
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This is also before I made the transaction.
The 24 hours will be up by the time I hear from him but I am sure he can still track the transaction and process mz mix should he choose to.

Agreed. Naturally worried as it’s been 24 hours as opposed to 32 minutes but I am relaxing and attempting to leave room for things to be corrected. Not sure what could have gone wrong on his end, but whatever it may be I am hopeful that he will fix it once he logs onto this or checks his email?
I’m praying that  I didn’t lose everything. It’s stressful because i liquidated everything I own in order to reap the benefits and join this epic financial revolution aaaaand, yeah. If I lose it I’m fucked lol. That being said, all I can do is wait and learn my lesson through this avid anxiety.
 *fugazi waiting room plays softly*