razer balckshark v2 pro blinking red whilr charging.

My headphones is low battery. It shows solid red when i turned it on. When i plug it in, it shows blinking red. It has been charging for more than half a day and it is still blinking red. I remove it from charging it is still low battery showing solid red when i turned on. I tried different cables and sockets and still the same issue. It was a great headset and i want to continue using it, is there a repair site for razer? Thank you,