Paytm — Unethical deduction of money

Address:	713206
Website:	paytm.com

I use paytm regularly in order to buy certain consumable goods as well as to do recharges and top ups on my few private number.
The problem is that this particular company is charging an extra ten rupees for every recharges and top ups.
For example
If i do a recharge of rs 20 from their website the bank will deduct rs 20 from my account. This particular company will again deduct rs 10 from my account without any reason. No confirmation will come that the particular amount has been deducted from the account.
One will only when the see their final remaining balance.
To my view the deduction of rs 10 is completely unethical and the particular company is fooling the consumers. I would certainly like to know what for they are deducting such amounts.