For those who used 1and1 hosting?

How do you cancel your plan or whatever? I've looked for a month (I know I must be missing something, or it could be that I'm a complete idiot) on how to cancel a plan and I can't find a single thing. They keep charging me fines and my site wont even work. I've tried making new pages, deleting old pages, everything. Take a look for yourslef. www.heavensentherps.com

If you know how to cancel a plan, could you help me out?

have you tried to contact them? all their contact info is on this page: http://order.1and1.com/xml/order/Contact