Through xrims i bought new wheels financed through oak rock financial, changed hands now with highland premier.com/ wheel agreement said $903.00 financed at 1.625 per month equals 19% annually. that comes to $37.00 a month for 30 payments according to 2 diffrent loan calculators. I paid 30 payments then asked for some paper work, they never sent their math only calling about a late payment I sent 2 payments and a $28.00 dollar late fee in the amount of $109.00, i am paid up until 11- 15-10 and they still have not provided their math in a statement that i had asked for twice.Is the loan calculator wrong my 30 payments were all prompt AT 19% ANNUALLY they did not break the loan down in how many payments i had to make.