Reliance Communications — Additional money being deducted for my calls

I had done a recharge of Rs 52 which was supposed to cut down the call rates of all local/STD Reliance to Reliance mobiles to 15p/min. But even after the recharge all my local Reliance to Reliance calls were charged amost 1Rs/min.

I called the customer care and they told me that its an error from their end and the will fix it ASAP. But nothing happened. I called 3-4 times and every time all they could give me were excuses. And now i am not even able to call the customer service. Its been more than 1 week since my first call and still no solution. The most frustrating thing is that i am not able to call the customer service. it gets cut all the time. i doubt if they are blocking my number.