Unsecured Cash Loans Is There A Limit To What A Loan Company Can Charge You For Interest On An Unsecured Loan?

Is there a limit to what a loan company can charge you for interest on an unsecured loan? - unsecured cash loans

I recently received a loan from a company called "cash call". I had to go ahead and accept the terms of the loan with interest of 59% and required surgery and now everyone tells me what I am supposed to pay interest may be illegal? Has anyone, when HRT is true or how to get this information?