Final bill with BG was incorrect. Been going on for 6 months now and I have proved beyond reasonable doubt they have charged around £80 in excess of what it should be. No response other than threats from the company. Their dedicated complaints line is not monitored and leads to FAQs only. Thought Ombudsman might help to get BG to at least look at the issue but frankly O behave like a subsid of BG. Instant denial is the tactic used. Problem what problem ? So in the end you are forced to pay an incorrect amount, no discussion just pay up or we'll damage your company using the credit score system is what they say.