Airtel — about customer care centre

Address:

Ludhiana, Punjab, 141012

Last month on 7th oct, 2017 or 8th oct, 2017. I went to b. R. S. Nagar airtel store for porting my no. From airtel karnataka to airtel punjab cirlce. Then they put my porting request and gave me a new sim card. After that they said that my 90 days tenure is not completed. But they put my request and said that i my no. Got ported my current sim will stop working and if it didn't then i'll receive a rejection message. On 11th of oct, 2017 my 90 days tenure got completed but i didn't receive any message neither my current sim stopped working. Now on 13th nov, 2017 when i went to their store they said my current bill is 751.

According to trai guidelines number can be ported within 90 days if it is ported inside the same company (From one circle to another).

And now i am paying for their fault. Is their any way that i want my bill to be reduced.