State Bank of Patiala — Smart wealth builder

Address: New Delhi, Delhi, 110085

I want to share my grievance - i had purchased a product (smart wealth builder), i should say i was forced to purchase as agents or advisor also state bank of patiala (sector-13 rohini, delhi-110085) branch people who wants to achieve their targets, after me to buy this.
While purchasing no information was given to me that after that there is going to be medical test (although i had no problem with that) and that service tax (which is huge in amount will be deducted). likewise other information. later when i asked about the concern person about this he said mam service tax recover ho jata hai kyonki aapko interest 9% ke hisaab se milta hai. he also said that unhe bhi pori jankari nahi hoti hai.
I had received a booklet on 5th september.
I request all the people to not to get lured by sbi life insurance policies. these days they are after achieving their targets.
I want to cancel it, want to know the procedure as it can be done with in the period of 15 days.
I also wants to know whether any amount deduct in cancellation and 15 days count only after rec. the booklet