Um Motors — battery problem since I have my bike

Address:

A101majlis park Delhi 110033, New Delhi, Delhi

I have renegade commando may 2017 model. I have battery issue since i purchased. I submitted my problem in service center in tilak nagar so many times but there is no positive response. Whenever i mentioned my problem they said that there is shortage of parts in service center.
If there is any feedback response please contact me at this number [protected], [protected], [protected]@gmail.com or [protected]@gmail.com
No need to thank you