Quick cash is a scam- Hidden Charges and Harrasment

I was urgently needed money, and I applied for a loan of 5000 on Quick cash but the interest amount was hidden at the time of application. I later discovered that only 3000 was credited to my account, but I was expected to repay 5000. l immediately return the 3k, and messaged them to clear the loan within 24hrs but refused. Since then, they have been calling me like 20times daily to demand repayment the money I didn't spend. They are scammers.