Don't forget, too, that there's also different routes at which the orders are coming in on, from computers, over the phone, apps, iPhone web browsers. Various internet and data speeds can be a factor in itself, even before it gets to the financial part of the line. But networks have had issues in the past with online order spikes. Happens every Cyber Monday and Black Friday here in the states. So to say it's unusual is a bit hard to swallow as its a problem I've experienced multiple times in my time working in the retail industry.
