If anyone out there is looking for an Internet service provider, I really do urge you to steer as far as possible from Heart Internet.
They ignore basic instructions, threaten customers with bailiffs over sums as low as £10, and carry on ignoring instructions even when they have been clearly expressed in writing. They are scum. If you are using them - I suggest you switch to another provider. If you are going through a list of potential suppliers - cross them off it.