Hi there again.
Sorry for taking so long to get back as to what has happened, but I haven't had time until now.
Having emailed David Atherton and had a mini polite rant about the problem, 30 minutes later I had a phone call on my mobile from the Dabs IT Manager. He said he had been asked to call be by DA. I explained to him a little more about the problem and he asked me to send him a copy of some of the 800 emails.
I did that when I got home. By 9.20am the following morning I had an email from him to say they had discovered the problem and yes, it was down to them. I got an apology and a £30 voucher to spend at Dabs.
So, despite all of their talk about being an e-commerce company and only communicating by email, I did eventually get to speak to a real person, albeit for a minute or two. More importantly, it seems like the man at the top of the company (or near to it) was concerned to do something about my problem. It's just a shame it took so long to resolve and 800 duplicate emails in my Inbox.
Anyway, thanks again all for your help with this.
It was worth persevering with.