Finbond Mutal Bank Bond Loan

I have a bond with Finbond since 2016/10/01 I went in debt review 2017/02/01 till 2020/05/01 and had to cancel debt review I made then further eft payments. I received a summon from the lawyers but I did communicate with them on the outstanding interest amount that they claim I am due to them R109 000 for three years according to them I haven't paid my bond for approximately 91 months how is it possible. I did sent all debt review payment receipts to their lawyers but they still summoned me. Please think twice in taking a bond with them. My interest approximately went about 6000 a moth it is crazy.