I don't understand why the Pro packages are so expensive compared with the C&W LLU packages.
Surely they are both just L2TP tunnels to the same peering at Telehouse, are TalkTalk really that expensive in terms of backhaul bandwidth compared with C&W?
These are the new Pro prices,
ex. VAT, on my partial LLU TTB line:
Pro 10GB £11.66
Pro 50GB £12.49
Pro 100GB £12.91
Pro 200GB £19.16
Pro 500GB £28.74
Pro Advanced 10GB £22.91
Pro Advanced 50GB £24.16
Pro Advanced 100GB £24.99
Pro Advanced 200GB £30.41
Pro Advanced 500GB £40.41
Pro = ~1Mbps upload speed.
Pro Advanced = ~2.5Mbps upload speed.
Hope this helps with your comparison to C&W LLU packages