Anyone needing to chase up a delivery from HDNL Swindon, I just tried the number listed here and it worked 01793-537171. But note it doesnt always work and sometimes just goes dead after ringing a few times. keep trying. A v helpful chap answered and is endeavouring to sort my problem out.
If you have a card with 0844-8111816 try this alternative.

So according to HDNL's online tracking system, they tried to deliver my parcel yesterday. Funny, my flatmate was in most of the day, nobody rang the bell and we didn't even get a calling card!

I just phoned that number to try and chase up my delivery - 01512908500 - and was told that she couldn't help me because she was the receptionist for that site of the company. Neither could she put me through to any of the depots or to the central customer services line. She (o so helpfully) gave me another 0871 number to call  

I phoned the number for the Wembley depot because I figured that is probably the nearest one to my house (despite the fact that I don't know... cos I have no delivery card!!) and was told that they couldn't help me because their system was down today and I could try customer services (again!) or get in touch with the supplier directly. Ugh!

Having seen earlier on this thread that other people have been told to contact the supplier, I had a look on Amazon as the supplier is a marketplace seller. Whose only mode of contact for customers is by online enquiry form!! There's no number I can call for them at all. So I really hope I don't get told to contact them.

So, having been told twice by 2 numbers I got from this site to contact central customer services, why is there no number for central customer services listed here?! I only have a mobile and my bill will be so high if I have to call the stupid 0871 number! Not only that, but if I can't arrange for them to deliver within 4 days they will charge me a tenner for the privilege of having my parcel returned to sender!!! Help please!!

Just called 0151 290 8500 and spoke to the 'receptionist(?)' who was quite helpful. I just insisted that I was unwilling to pay for an 0871 call and did not have access to the internet at the moment. I asked if she coul give me a geographical number for the automated service but she said she couldn't.
She took my address details, found my parcel and emailed the depot with new delivery instructions.
Let's hope the system works, EH?
P.S.   I love this site!!   Sooo useful!!

You're lucky if the geographic number works at all, the number listed for Eastleigh (023 8061 9866) doesn't accept incoming calls. The website www.myhdnl.co.uk is currently not working - maybe it never does. Surely a company wouldn't try and force you to use a 0871 number .

Also, trying to sort things out from the main hdnl web site is only possible if you have the long code from the retailer, I can't find any way of searching by (missed delivery) reference number on the main hdnl web site.

And, the cheaper number 08448111816 is dead.

Thus, for missed deliveries, the only option for some of us is to pay 10 pence or more a minute.

I don't see the value of the customer relations details - we're not customers of hdnl. One way of stirring things up a bit might be to use the main hdnl web site to pretend to be prospective clients (ie retailers) looking to use hdnl. We could explain that we are retailers who like to treat our customers, who would be their delivery recipients, like dirt, and sense some synergy between our organisations. If enough of us do this it might have some effect.

My first post. I don't think I've broken any rules - I've been careful to ensure that the preceeding paragraph could not be proven to be defamatory.

Gatwick (in reality its in Crawley) branch's number worked fine when I used it last Thursday 5th Nov and I was even able to request that they leave the item from Amazon in my entrance lobby without a signature.  It was there when I got home that evening.

Amazon quoted 8 days for delivery when I ordered the item but it only took 3 days and the Royal Mail was also happily excluded from the final leg  to the front door by the use of a courier based in Crawley.

So my niece gets her Fab-tastic Cool Cookie Creation present delivered to my door for only £12.99 when it was £17.99 if I trudged to the local Toys R Us store some 20 miles away and burned all that fuel not to mention car park charges in Woking's Peacock Centre. Seems like a good deal to me.

Confirming the geographic number for the Shaw/Oldham/Manchester delivery depot works.

01706 355 223

I got notice from Amazon my parcel was due to be delivered on a certain date. I knew I would be out. I spoke to Ann at the depot who kindly arranged to delay delivery till the following day.

Will keep my legs crossed the new arrangement works but Ann was very polite and no potential difficulties raised.

Thanks to BigK and regglad for providing feedback. 

These two numbers are listed as verified.