u/Disastrous_Chart_163

I (M20) downloaded KubiSloan app from playstore on 6 may and i put in my details and they approved a load of 3000rs without my consent without showing tenure and interest and they only deposited 2400rs of it and withheld 600rs in name of processing fee and they want me to pay back 4000rs on 12 may. An extra of 1600rs for just a 6 day loan. What should I do.