Suffering from worst GTPL broadband service complaint

I’m living in Gujarat, Ahmedabad.
I’m using the worst GTPL broadband service... from last couple of month service become low grade. they cut the connection as they want... not providing internet for couple of days without any reason...
list of problem faces with GTPL broadband
1. They disconnect internet for 1 day 3 day 4 day.
2. Every time we call tall free number automatically cut after 3 minute, its say that line is busy after so many try we connect than wait for executive so worst service.
3. Their customer executive not provide satisfactory answer and cut our phone call from their side.
4. They never solve our problem in 24 hours as their deadline.
5. They told us lie that your problem solves today but never solve as they promise even 72 hour gone.
6. Not good response from their customer care executive – senior customer care executive & their technician.
7. Many of my friend facing that problem too.
I let down many time but their service become worst day by day so I decide to complaint.
on date 18-7-2016 GTPL technician come at 6:30 PM to transfer DP from my home to neighbor home because there are so many wire on my home and want to paint my home... their technician transfer the DP to neighbor and INTENSIVELY not connect my broadband wire to DP... i know this when i check my wire whether it connected or not and find my wire open to floor not connected INTENSIVELY as i thought...
I have complained to GTPL for this issue but they not listen me properly they give me time 24 hour to solve problem at 19-7-2016 till evening …… But no technician come to my home till evening 19-7-2016 ....
At evening I complaint again to senior executive AMIT …... He told me lie again that service person come in 1 hour before 8:30 PM 19-7-2016 ….... No one come as I thought ......
Then I call again to their customer executive he told me that your problem solves till next evening of 20-7-2016 …... Their costumer care executive not providing satisfactory answer and cut my phone many time from their side …...
I call again 20-7-2017 9:30 AM morning they again told me lie that your problem short out at 12:00 PM 20-7-2016 ...... Still no technician come as I thought ......
I call again to senior executive JIGAR 12:45 PM 20-7-2016 again told me lie that service man come at 2:00 PM before evening and so on lie promises ...... No one come as I thought ……
I call again 2:45 PM 20-7-2016 again told me lie that service man come at 2:00 PM before evening and so on lie promises ...... I wait for evening no one come as I thought ......
I call again 5:30 PM & 6:30 PM 20-7-2016 now they said me that wait for next evening 21-7-2016 ......
I tiered out from their answer and finally I go on to top floor of my home and with my risk I personally connected wire to their DP which is next to neighbor …… because I know that on next day I have to heard same answer....
I suffer lot from their service so I want my money back with interest.
Or extend my service for 2 year