Locanto — Video chat service cheating

I paid 400 rs for video chat service in locanto, for 15 minutes, but she gave service only for 5 minutes and also she demand more money for that service, and few hours later she WhatsApp me in anonther number telling that I will upload my video chat in social media, if you don’t want to upload then give me 10000 like that she is telling, so I request Locanto kindly block this ad from your websites and all block that users not to post any ad in future,

I have a mobile number, this number only putted in that specific add and I also made google pay in that number only [protected]