Hi Reach Broadband — No internet all the time

I already have a hi-reach connection of 60mbps speed...and one week back took another connection for 100 Mbps speed...the internet is not working properly and for both connection we have one year subscription...it is always showing no internet and the guys who came to fix mixed up both connections and now 60 Mbps is working at 70mbps and the 100mbps connection at 40mbps...we paid for 60 and 100 Mbps and we don't get as we asked for...very disappointed and when we call the person who setup he doesn't take care of the problem...so either fix the problem today or we want a fully refunded cancellation... thought the service would be good but turns out to be the worst