I'm on the 200mb package. I've been used to peak-time speeds dropping a bit - down to 150mb or so - for a while, but things have been really bad for the last 10 days or so. Speeds rarely getting above 100mb at all in the evenings or at weekends, and dropping to 30mb or lower in the evenings.
Just been onto support again and simply get "it is a utilisation problem".
It was so bad I couldn't even load a web page (example www.bbc.co.uk") and even a simple ping was constantly failing. On reboot the router it was taking over 10 minutes just to get the WAN DHCP. I guess failing to understand how it can be so over utilised that you cannot load a simple web page?
I've taken a look at your connection, and there is a high peak time traffic fault raised in your area which is causing slow speeds. The reference number is F003389984 and has a review date of 5th April.
To discuss this further I have sent you a PM, which you can find by clicking on the purple envelope icon, in the right corner.