Bad internet network, worse service

I have internet connection problem since 4th April. each and everyday internet disconnected 2 to 3 hrs and all of sudden no internet from 8th till 12th. I made tons of calls and live chat but the answer is always the same. "we will issue a ticket to SADV" "SADV is investigating" The Internet came back on 12th but off this morning again. This is unbelievable. Dear Home connect, if you getting monthly installment, you must provide either stable internet service or solve the problem properly and quickly. if you depend SADV or Vumatel, why should I pay installment to you? pls cancel and refund money with immediate effect so I can apply and deal directly with other service provider.