UK, Syncreon tracking is worthless, why even bother?

I ordered 5 XPS18s from Dell and was told an ETA of on or before 14 August. This was fine, but I was then told 'Order Shipped!' on Thursday 7th, ETA 8th August - great!

I waited on Friday 8th for the machines and approaching 12:00noon (the deadline) the TRACKING INFO CHANGED AND ETA CHANGED TO MONDAY 11TH. With 13 MINUTES TO DEADLINE. ANNOYED.

Anyway I phoned Walsh Western to express my annoyance to be told 'oh this always happens, perfectly normal'. After asking 'what is the point in even having tracking if you change it anyway all the time' I progressed to asking 'so Monday DEFINITELY THEN?' I got the answer 'yes, it will definitely be Monday'

Monday comes. 12 midday comes....and GOES. Tracking checked: ETA 12 AUG, TUESDAY!!!  Now I'm LIVID. My customer was told they would be here Friday according to the tracking info given. I've had to backtrack TWICE and still I have no machines and look like an idiot. Oh and Walsh Western said they haven't even received an order from Dell yet to send this out. BUT I'M TRACKING IT. AHEM WHAT?

Also, I paid upfront for these machines. The money didn't come out at all at first, I only got 2/5 order confirmations through initially. it looked like I bought 2 machines, not 5. I nearly bought them twice to make sure. Finally all the money came out but still showed on my account. Then out of the blue on Friday I get refunded the full amount?

Now I'm thinking am I even GETTING the machines? I have 2.5k sitting there, do I buy some other machines? Eventually Saturday the money comes out, but not before giving my bank a chance to sabotage the order. This is not on. I am really bloody angry now and still have no machines. It's still before the Dell original deadline but I feel had all of this info been withheld I would still be a happy customer.

What's actually happened is Dell have given me tracking info that is useless to the customer and has exposed the whole process as a shambles. So the question I ask, is why even bother providing this info? If you didn't, you would have a lot less complaints. My second question is: WHY TAKE THE MONEY, GIVE IT BACK THEN TAKE IT AGAIN? Nobody else does. The amount of customers that must have been sabotaged by the bank by doing this only for you to then cancel shipping altogether MUST have lost you thousands of orders. Get your house in order Dell. It's an absolute joke.