Hero Moto Corp — new bike starting and soccer problem

4 th february 2018 i bought a new super splender 2180. Soccer problem may arise from first day. Service center change soccer on 6 th february. But another problem also arise on national highway when i came back to home from showroom. Starts stop many times. 10 km distance takes more than 3 hour. I think they sale me either worse or old bike.
Now i want to change this bike. What shold i do