Tikona — Lengthy delay in disconnection of services

I want to cancel and disconnect my Tikona broadband connection [protected]. Last date o[censored]se was 25th August 2015, and I initiated the process of disconnection on 25th August 2015. I received an email saying that it will take 16 days for completing disconnection process, and someone will come to pick up their equipment between days 14-16. I also sent an email confirming I want service disconnected on 8th September 2015. It is now more than 4 weeks, and we have not received any call from the Disconnection Team. Instead we keep getting calls, SMS and emails about increasing bill amount (we have not used the connection). We called up the call center on 7th and 9th October and they said someone will call back within 24 hours and no one has. It has been a complete nightmare interacting with Tikona's Service team. They always respond by saying someone will call us up in 24 hours, and no one ever calls back. Even while disconnecting services, we get to see the utter unprofessional attitude of their team.