Really sorry to hear you're having trouble with your V6 and broadband.
I've located your account and I can see an issue with the network in your area affecting speeds at peak times - Ref.(F004836381). Our technicians are working to get this resolved and have set a review date of 3rd May 2017.
I've also picked up and issue with your Upstream Power levels that will need to be adjusted by a technician. I've sent you a private message (purple envelope at the top right of your screen) so I can arrange an appointment.
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