Change an order at Thomann afterwards?

Short question, short story. I just placed an order with Thomann, but the order only used my current address on the invoice and automatically used an outdated address as the delivery address, which I suspect may have been due to PayPal.

In any case, I didn't really have control over the selected address and would now like to somehow change or cancel the order before it's sent and delivered incorrectly. I'm aware that orders placed online may also be delivered before opening hours, which would of course be annoying, as it would inevitably end up being sent to the wrong address.