Whetstone Partners, LLC E-Title Loan Loaned me money Miami Florida

 I needed to borrow $500 and this company contacted me for a loan. I was told that they would loan me up to $2000 towards my car and that the payments would be small. I agreed to the loan of $1000 but it turned out that the payments are a little more than I can pay. I have tried to pay my $164.00 payment each month until the last 2 months when my health has caused me to miss a couple of payments. This company will not work with me on payments and everyday they call for the payment. When I have talked to them I find that they have added more fees to the loan. As of now if I had the money to pay off the loan I would have to pay approximately another $1000 towards the monthly payment plus additional fees. They are always threatening me with reposition of my car and I am at my wits end as to what I can do. I have already paid them almost $1000 on the original loan. What can I do?