I'm trying to start a trial in GHL , but it keeps saying that my card has been declined , I've tried 4 different cards from different banks but no results. I've contacted their support via email but there response was nothing they can do , other than " try a diff browser , try a diff card ". any solutions or fixes ?

Hello, I hope y'all all doing well, can someone explain to me the difference between these sync options and what's the best option, Thank you.