Unbelievably atrocious. Statements like, "void the contract and delete my details," and, "I am no longer a customer of talktalk," are apparently not clear enough to qualify as cancellation. But they won't tell you this, they'll wait two years, sell off a "debt" to collection agents, and claim they have no evidence of your statements..because they deleted the correspondence, the complaint and the accompanying message chain. Never have I been so glad to be a hoarder of correspondence. I'll shortly be taking talktalk to court. Do not ever enter in to a contract with talktalk, they will not provide what they promise, they will obfuscate and outright lie, and they will ignore your requests to cancel. Never has a company been so deserving of a negatively starred review.