TalkCharge — Recharge failing repeatedly and they are asking for 3999 as priority pass amount

When I tried to use talk charge for recharge and other utility activities, it is failing continuously. When I try them in other recharging apps, it was successful. So I came to know that the people behind talk charge app is playing on us. Because I added som big amount of money to my wallet, so they want me not to use that wallet money. This is pure cheating from company side. Lot of people are suffering from this problem. Also they are charging convenience fee of huge percentage on recharge and utility payments. Please take necessary actions against this customer anti-fiendly company.