BSA Hercules — Hand brake damage

Address: 601201

Sir, i have purchased 14 inch cycle from gummidipoondi cycle show room, price rs.2650. Another day is damage hand brake very poor quality hand brake. I have going to store, he has telling not any response. After i call to bsa customer car there is told plastic item not warranty covered. What i do sir, very important cycle hand brake that is not quality, please take action.