Hi Reach Broadband — worst internet service provider ever seen

I'm the user of reach broadband for 3 months and this is the great mistake i ever did in my life. For every week it's going off for a day, when i try to contact them they always say it will resolve in 3 hours but they never resolved within the time. I asked them to cancel the plan early and refund my money back but i don't have this option too. Please take proper action on them and i'm advising everyone not to choose reach broadband at any cost.