Wireless Earbuds EP-T25

I have purchased the Wireless Earbuds EP-T25 from Amazon India as a Diwali gift. One of the earbuds is not working. It seems to be not getting charged. I have attached the images and hoping a quick resolution if the issue.

Thanks

@Dane request your support on this

Please press the headset while charging the headset, please keep the headset in full contact with the headset box, and then close the headset box.
At the same time, you can try to reset the headset to see if it improves.