Monterey Financial Services review: Free financing

I bought a product last year and this company offered free financing as long as I made 4 payments on time. I was not able to make the last payment and now this account reverted to 98.9 % interest and they kept taking money out my bank account until it totaled almost $2000. The original price of the product was 1337.16. I spoke with them on the phone yesterday and they informed that there was 1 payment left and that it was $101. 11 so I paid this yesterday thinking that I was done with these xxxxtards. Now today they tell me that another payment is due