Cashe — complaint about interest

Address:

vill barar p.o shilaroo teh theog distt shimla hp

I take the loan of Rs 35000/ on dated 29 jan 2018 and they credited Rs 31669/ in my account after deduction of Rs 2625 interest and Rs 350 processing charges Rs 63 gst which is the wrong practice of RBI guideline as nobody can deduct whole interest at the time of disbursement even i paid first emi on time then i talked in CASHE about but they dident refund the interest amount to me after that i paid remaining amount Rs 25500 to the company on dated 23 aug 2018 also paid penal interest Rs 3500 on 08 apr 2019 and 5557 on dated 10 jan 2020... on loan of Rs 35000 i paid 11722 as interest which is so huge and now it effected my cibill score

this is my request with you kindly help me to solv this issue