Have you tried the following Shopify tutorial?
I am trying to close my acount and I've followed everything shopify told me to do to close it.
But it won't let me close my account.
It says I need a password and when I type my password in i says incorrect.
I am starting to believe that this is a scam. If so I am going to notify as many people as I can through social media.
I am not a tech nerd so if I am doing something wrong the help shopify gave me is at fault'
Does anyone know how to close an account or contact someone fron shopify