Intex Technologies — battery problem imei no [protected]

Address:

Guntur, Andhra Pradesh, 522601

Sir, my name is narasimha rao i have brought an itel - a44pro mobile on 25/07/2018, in om sri jai ganesh vasu cell shop in narasaraopet, guntur dist-522601.
The main problem is battery is not charging still 3 days
So i am complaining to the authorized service center but the service center mechanic told that the batter is enlarged or expanded.
They are saying that there is no warranty to this problems, so what is the remedy for this problem i want the battery urgently or new mobile. I will no pay any amount for this battery.
My cell no is [protected] and email id is [protected]@gmail.com
Battery modal is bl-24ei
Is no -16046/iec62133, r[protected]
Bar code no is[protected]n