Tata Docomo — cannot deactivate a paid service

Address:

Coimbatore, Tamil Nadu

Sir a service named HUSTLER MODEL VIDEOS is active in my number.
I tried to deactivate it through 155223 portal but cannot find an option
to deactivate it. And response from customer care is too worse. It is
totally a head ache given by these service providers with such unwanted
Services. Pls take necessary action to stop the service from eating my balance
or just give me any information to stop this service. Im vinoth my num is [protected].