Livpure — Complaint regarding not taking action yet for my cancellation

I am so sorry to say you that I am pissed off with the service of livpure.Not a single month I have used the livpure machine properly.Every time facing water is not coming issue and technician came to my door to fix it.But few month ago I was faced the issue again but no body was giving proper response.Still that the machine is not working properly.
So finally I decided to cancel the service get my caution money back. I had already raised a complaint for the same.
But no body came to my door step yet to pick up the machine.
So kindly help me out for the same and take some proper action for that.
Please find the attachment in which I enclosed few things for your better perusal.