It will lead nowhere, but I sent Tim Cook an email. I'll update if I ever get a reply.
Here's what I wrote:
Dear Mr. Cook,
my name is ****** and I live in London. I've been an Apple user for 4 years now and up until today had no complain whatsoever about your products or about the way any of the queries I ever submitted to your customer service was handled. Both my iPhone and my Mac make my professional and personal life much easier and I am honestly a great admirer of Apple's vision and products.
However, this morning I noticed that I couldn't access my iCloud e-mail account neither on my Mac or on my iPhone. The iPhone wouldn't return any error message but the OS X Mail application would return a "Service unavailable. Try again later" message. The first thing I did after that was to check the iCloud Status website which had no issues stated. A couple of minutes later it acknowledged the service failure, stating is was affecting a very small percentage of users and that service would resume ASAP. I then tried to sign in through icloud.com webmail, but it didn't work and I sent the report to Apple as the website suggested.
I waited until lunchtime, without any developments and still unable to check my e-mails. My iCloud account is my professional account so it is absolutely necessary for me that it works all the time.
I then called Apple's phone support (as my 4S is still under 90 days complimentary phone support), but even after I told the assistant I had already checked the Status Website, I kept being referred back to it. No explanation of what was going on, nothing. Just a mention that "our engineers are looking into it".
The assistant offered to schedule a phone call for 1h later. I get a new phone call (Case # ********, it's the only one I was asked to write down) and no answers whatsoever and I tried to explain the assistant that it was crucial that I had frequent access to this email account 24/7. No assistance was provided and the operator even tried to sell me Apple Care, which I think was absolutely out of place and extremely inadequate since it was an Assistance line and not a Sales line. He then offered to schedule a new call for 90 minutes later, a phone call which never happened.
I waited until the end of the afternoon to let the service maybe resume, but nothing. I called Apple again and was referred back to the website I said again I had already visited. Again no justification, nothing.
I know that services fail, but the iCloud e-mail service is too important to be offline for 9 hours now. It has caused me terrible distress and I am afraid that all the professional e-mails that might have been sent today may have been lost. Again, none of the assistants I spoke to could assure me that this wouldn't happen.
This disruption obviously displeased me a lot, as it is a service that's supposed to be highly reliable and it's basically an e-mail service failing which is something that shouldn't happen in 2012, or at least not for such an extended period of time.
However, I'm mostly displeased with the way that Customer Service dealt with the situation failing to provide a customer with a satisfactory or helpful answer.
Please look into this and make sure that loyal Apple Customers get the replies they deserve from Customer Service Helplines.
Thank you for your time.
Regards.