Mts — Again and again deducted my balance

Address:	Chandrapur, Maharashtra, 713213
Website:	Mts India

My MTS mobile number is [protected] they deducted Rs62 balance from 30th may. And refunded only Rs40. Again today rs10 has been deducted. When I called customer care they said for downloading wallpaper you have charged rs10. But I have no any options to download wallpaper and my mobile is not supported gprs. It's model number is Samsung sch-b209. Which is a reliance mobile I unlocked the mobile and put in MTS Sim. So how I can open Internet from this phone????? But they continuously saying that you downloaded wallpaper.
I complained here before but they not replied. So I decided to go to the court... MTS is a fraud company. They have no any responsibility and customer service agent also have no good behavior.