Order still not Shipped

I have purchased Dell PC's for around the last 15 years now and my latest experience has been shocking and very poor.

I am still awaiting my order to be shipped.  This is now into the third week of me waiting for it.  When viewing your website it stated "Free next Day delivery"  I knew this would not be the case especially in the current climate.  Sure enough after completing the order it said it will be with arrive in around 7 days time.  I thought is okay I can get by without a laptop for that period.  Two days later I receive another e-mail stating another delay for two more days. 4 days later another e-mail saying another 2 day delay. 2 days later another e-mail with another delay of 2 days.  Each time no explanation as to why there was this delay.  It has been 8 days since the last e-mail and yet still no delivery.  As per the link in the e-mails "Please contact Dell Support   if your order status does not show as Shipped."  I have contacted them twice now and each time I get the same identical meaningless Corporate email saying: -

"I apologize for the delay with your order.

 The reason your order is delayed is due to a supplier issue with parts. Dell is currently working with our suppliers and will strive to expedite the delivery date.

I have raised a request with our internal team to get the order expedited and we will try our best to get the order delivered to you as soon as possible. 

Once the order is shipped, you can track the status of your order by using our online tracking link. To use this link, you will need the below reference numbers. 

I will be assigning this Service request to one of our case specialists who will follow up with you and will keep you updated."

I have still yet to be contacted be a "Case specialist". 

I now know why there was a delay, but you would have known this at the time I purchased a laptop yet you still mislead me into believing it would still be send in a reasonable time

If I had known that there was this problem I would have used another company/site as my old laptop (a Dell) recently broke hence I needed to purchase a new one.

I appreciate that in these current times things are difficult for everyone.  But on your site you boast that you still offer next day delivery, even today I had a look and you still have it on there saying that.  I know that would not happen but why do you still have it on the site?