Gionee heating problem

Respected Sir,
I had purchased Gionee P5L on May 2, 2017 from M.K. ELECTRONICS, but due to overheating problem, I had send the mobile to gionee service centre for repairment but to my disappoinment the company did not solve the overheating problem. Therefore, I would like to request your kind authority to replaced the mobile or repair it at the earliest.
disappointed customer Keretsii