After sales non-existent.. so sad as it started out well

My Experience started off really well... Service was great, response times were quick to sign me up... however.... Now that my Fibre is installed, I am not getting the Line Speeds I Paid for... I have contacted their Support and they Keep copying and pasting the same generic response. "My line will be upgrade during the month", I am a NEW Client, so how can my be upgrade when I am a Brand New Client??? How about I rather Pay the price for the lower line speed? would that make it fair?