Having only just discovered that since moving hosting provider two weeks ago none of my email accounts were working properly, I have now had the issue resolved.
The new host seems to be working out well despite this and had I noticed the problem sooner I’m sure they would have resolved it sooner too.
10pm on a Sunday I called the 24hr support line. I explained the problem, gave my details and was amazed when I was told the problem would be investigated and they would call me back!
At 10.50pm the phone rang and sure enough it was the support assistant calling to let me know he’d looked into it, fixed a very simple bug and everything was now working OK.
I tested the email accounts and sure enough all was as it should be.
So far webhostingUK definitely come recommended.
Also, apologies to anyone that has tried getting in touch. Please try again, thanks.