Hardly surprising that they're a failing telco in the UK... given the appalling way they behave. Selling people broadband packages they have no intention of fulfilling, lying through their teeth about porting numbers (they don't even bother trying) and hoping that you'll accept whatever number they give you and lose your old one that you've had for years.
Do I sound bitter... damn right... Experienced all of that and more in the few weeks I had to suffer with them. Eventually got every single penny refunded after I had to threaten them with the regulator... But couldn't sign up for a new provider until the actually disconnected my service... phone line took 3 days longer than my broadband because I wanted the number they supplied terminated not accidentally ported by the new provider... who couldn't take on an active line and then port another number from a 3rd provider.
Customer service is a joke, would give TalkTalk a run for worst provider ever.
In the end, swallowed the hit and went with Zen, who have so far been hassle free, ported my number and actually provide a decent router.
Could have gotten it cheaper... but I value better service over cost for something as important as my access to porn... I mean, wholesome and family friendly browsing.