Iphone 13 mini cannot activate byd digital key

Hello, i have been trying to add/activate my car key to my iphone 13 mini but to no avail, any other iphone i tried, it can pair and activate my car key but for some reason my iphone 13 mini cant, it keeps saying theres a problem with adding car key. Ive followed the instructions on the screen to the T, i have researched it on google and chatgpt and followed every bug fixes. I have also updated my ios to the latest and my byd software is latest. Also the account is my account that i use to set up the car key also, no changing account So please help me out here, my region is brunei if that helps and there was no problem pairing the car key to other iphones