Videocon D2h - Unnecessary they charge money

I was using Rs.*** scheme and recharge but suddenly without any intimation they changed my scheme for Rs. ***+,when I spoke to customer care,they say that it is by default so we cannot help,so they asked me to pay Rs *** and I payed it,
Now suddenly all my channels got changed and only * Tamil chanels are visible,instead it should be more than **+Tamil channels,
Now the customer care days that we will send the engineer a n u have to pay Rs ***,
Why they always charge from us for their mistakes and error,
Every time unnecessary Small errors they create it and they send engineer and charge from us,
Please help us because I'm a low middle class fellow living in a budgeted life,but these corporate are taking money forcefully without giving proper services,I can't effort these kind of expenses again and again because I recharged for Rs,*** on **th July ****, today again of Rs. ***, now they are asking to pay *** to their person but infact there is nothing to ask them, they say it is a system and u have to pay,
Please I request u to take action against such system who cheat and fool prop like me, my money need to be refunded and penlaty need to be charged against such Videocon D*h company and published to us