N1619501901753 , via OnePlus 8 Pro , Nov 24, 2021 : Had my alarm set up 10.55. I had been trying to add the Oneplus buds pro from first second of 11.00 until 11.08. Two devices, one laptop with wifi. My phone with stable internet service. Both says too many people buy at same time until they are out of stock. Never gonna buy a single item again from OP.