I haven’t faced any difficulties in recharge on freecharge website.
Its very simple to simply recharge and also you get the free coupons. Its better from Pay tm, I have switched my all recharges from Paytm to Free charge as there is no difficulties in recharge and it never fails or anything and after there are lots of free coupouns available, which is just like a CASH BACK or any reward point or Gift Voucher.
Best part of this app is its just you have to type a number and they will automatically choose the operator and for your convince they show the plans available for that operator and you can choose any of them.
Now no need to call customer care for recharge plans just go to free charge and they will show you all the latest plans of TOP UP, Internet etc.
They also provide the free coupons or at very low cost a gift voucher of KFC, Dominos et, which you can en cash anytime by visiting there outlets.
Payment term is also very easy and secured.