Airtel — non-responding of complaint

I know about the status of my complaint against bharti airtel customers service submitted on 4th dec, 2017 regarding long pending of my port request.
My original complain as below:
"i have applied for port to airtel of my reliance no. [protected] on 30th oct, 2017. My upc code is es844561 as sent to me several time via sms. But my port is rejected numbers of times, reason shown upc mis-matched. I have communicated several times to airtel customer centre at nagaon, assam, india. But in every visit no satisfactory reply found only informed me that it is rejected. Previous network r.com already closed. Suffering lots as i have been using it since 2005."