240511 Blackpink + Takashi Murakami Lightstick ERROR

I ordered this lightstick on March 25th, 2024, and paid 168 euros (including shipping and taxes) for it. I received the item on May 4th, 2024. When I opened the package and inserted the batteries, the lightstick did not turn on. I tried plugging it in to charge, and it did turn on. However, once I unplugged it, the lightstick turned off again. I emailed Complex (the store I bought it from) but have not received any response. It has been 4 days and I am very frustrated because I spent 168 euros on this and it is currently not working. I hope someone can help me

by Aggravating_Day_8691