Sainsbury's online grocery site was broken last night; it kept giving me 404 errors when I tried to pay for my order. There was one slot left that would get here before I had to pick the kids up, I'd booked it and wanted to keep it,  so I emailed their customer support. I was hoping maybe they'd tell me when it would be fixed, reserve the slot for me or something. 

I kept checking my email and trying their site and eventually later in the evening it worked, so I forgot about the whole thing until this morning when I got this: 

From: "Sainsbury's Online " <>
Subject: Shopping online [Reference: 120110-00XXXX]
Date: 11 January 2012 09:54:42 GMT
Reply-To: "Sainsbury's Online " <>

Dear Mr McCall

Thank you for your email about our website. I'm sorry you've been having problems on our website due to an error 404 message. I understand this must be frustrating.

I've spoke to our Customer Support Team and they have told me that Microsoft have been experiencing issues accessing the Sainsbury's servers that our website is based upon. They suggest that you search Google for "Error 404 Fix" and a Microsoft Tool will be available for download. Once downloaded this tool will fix the error and you'll be able to use our website again.

If you need any further help please contact us on 0800 328 1700. One of my colleagues will be happy to assist you.

We appreciate you taking the time to contact us and hope this issue is resolved for you soon.

Kind regards

<Name Removed>
Customer Manager
Sainsbury's Online

I don't know what I can add to that.