Flipkart.com - Non refund of money and block flipkart account

I Have Purchased A Safety Guard **AMP From Flipkart And I Got It Since * January . When I Used It In My Electric Board Then I Found The Size Of This Safety Guard Is Too Much Greater To Fit In My Electric Board That's Why I Created Return Of This Product For * Times But They Cancelled Return All The Time . Now They Are Not Giving My Refund and block my flipkart account.
Product- SAFETYGUARD **AMP SINGLE PHASE ELCB,RCCB,RCBO DPVL **AMP, Single Pole, Order No OD****************** Transaction Id ************ Date Of Purchase ****-**-**, Email Id Registered With Company Amazonfliptm@Gmail.Com Complaint No / Ref No. Amount Paid ****