Corporation Bank — loan amount principal amount not decreasing from past one year and bank manager is not responding

Address:

East Godavari, Andhra Pradesh, 533005

Name:s. S. R. A. S. Konda babu
A/c number: [protected] branch:thimmapuram
I have taken a kapu corporation loan amount of 2lakhs in witch 1lack is given by kapu corporation and one lakh is given by corporations bank. After taking the loan it function good for about a year than then bank manager changed and the account was having problem since then i was complain about the issue from past 6months to the manager but manager is not responding about the issue from last year august 2017 to this year august 2018 i have paid the loan amount properly as 2500 per month but the principle amount decreased was just 2000 per one year. So i said the manager i won't pay until the account was rectified still no response. So i stoped paying installment from last month. Please resolve the issue about my loan account. It's showing now 4lakhs sanctioned. What's happening with my account please look into the issue