Outstanding for the Canceled Loan

In the year 2016 I had got a Loan amount of Rs.3,40,000.00 in Hinduja Leyland Finance for purchasing Commercial Vehicle. The above said Finance Company Paid the Amount to Vehicle Selling Showroom, without my knowledge & not even informed me. Few days Later I droped my Plan of Purchasing a New Vehicle, so I asked the Finance company to cancel my loan. The Vehicle Showroom has Returned Rs.3,70,000.00 (Aprox) to the Finance company (as per their Statement). They gave me a Loan Agreement Cancelation Letter in the Year 2017. But till Date They are Showing Rs,88,000.00 (Aprox.) As outstation as per their Statement. This affected my CIBIL Score. So that I couldn't get any loans Nowadays, due to this. I had visited that Finance Company, they was telling me to pay the outstanding amount., now Management was changed. Now I went to branch their reply was the didn't know the procedure to close the loan account. On other side I had raised a dispute in CIBIL website, they are redirecting to that Branch. On other way I had tried to complain to their head office but they also redirecting me to that same branch. Kindly help me to solve this issue. This had affected my CIBIL Score .