Defective Audionic Airbud received Urgent Assistance Required

I have ordered Audionic Airbud 4 from PriceOye.pk.
I got my parcel on 27th June 2023. I recorded a video while unboxing. The packing was fine. when I connected the airbud with my phone i realized the right side doesn't worked. So I charged it for 4, 5 hours then I tested again.
I realized that right side battery goes down within 2,3 minutes. I called priceoye customer care. They were asking to go to audiogen customer service in your city. There is no customer care service here. And previously i had worst experience with Audionic now Priceoye is doing the same.
I do have not the time to go to repair the new product. I have purchased from my hard-earned money for gift to someone on Eid Day.
Now this has ruined it.
Please help me with this.