No issues until I tried to switch to another company and then they tried to block it. No valid reason for doing so and they were obliged to allow it. However they are being less than honest in sorting the matter out - they are obliged to automatically pay compensation by the ombudsman when they make these mistakes but they're trying to dodge it. They pretend they don't receive email responses etc so I replicate each action via their online complaints form. Not impressed and unlikely to return to them in the future even if their prices were to be slightly lower than competitors in a quote.