Complaint, Dell UK orders

I have today cancelled 3 orders (2 laptops and a desktop). The reason for cancelling is twofold.
1) at the point of ordering all orders gave delivery within 2 days which is why I used Dell, as the need for the units was extremely time dependent. after ordering I kept checking the order status and none of them progressed at all. one order was over 2 weeks ago and was due in 2-3  day the others were ordered last week and gave 2 days, all stayed in the no progress box well beyond these dates. I tried using your online tracking and realised rapidly that your customer service is deeply hidden to the point of being unavailable, and was useless. I had in the meantime recived and email from someone not based in the UK name telling me they were my 'account manager'. As my account manager I contacted them to see if they could find out why I hadnt received my orders and how important they were (it would cost us thousands of pounds if we didnt get them on time). I was then told as I hadnt ordered through them that they couldnt help but then they said they would try to help. I received an email back to say "

The reason the order is currently on hold is that during the purchase process, the intended use of the machines wasn't specified. Normally, for smooth processing, this field is selected — for example, “Office Use” — which helps avoid any system flags. Since it was left blank, the order was automatically placed on hold for verification."

Apart from the fact this is quite ridiculous, we had recived no notification in any part of the order process to say this was mandatory OR that we had omitted it. So in theory if I hadnt had the misfortune to deal with my 'account manager' I would have never received the laptops at all.

2) After discovering the ridiculous reason for the hold on the order it would seem logical that someone somwhere or even me could tick the box to release. I was told,

"That said, I’ve already raised a request for the release and am actively monitoring the situation. I’ll keep you posted as soon as I have an update." and "Apologies for not updating you sooner, I was waiting to share a definitive update, but rest assured, we’re on it and I’ll make sure it’s released as a priority. I’ll keep you posted and share any developments shortly."

Al sounding lovely but after 3 days no laptops. I have now had to buy high street laptops as an emergency to save losing the consequential thousands of pounds resulting from not having the laptops available when I needed them. I have tried to cancel the order online (I have recieved no formal notification that the system has even accepted the cancellation and am preparing for a battle with Dell on this one as I believe the orders will be stuck in limbo with my funds taken, no product released, and no one to assist) and informed my 'account manager'. I have received nothing from Dell to acknowledge the cancellation and nothing from the 'account manager' to apologise for the fact I have had to cancel the order, or even a compensatory voucher. This is the 2nd time in a couple of years I've had similar. Your business is broken and we wont be using again. The least you can do off the back of this post is acknowledge the cancellations and provide an apology for this shocking situation. Thank you