Jolla Phone update - final payments status Batch 1, 2 and 3

I’m not sure if here is the best place to ask, but how do I cancel my preorder? I cannot buy the phone at the moment but I cannot find where I can get the refund of the preorder.

In the email they sent with the code, there is an image with the options to buy now, delay the payment of cancel the preorder. I have no idea how to get to that.