If you mean that you want to leave 48 then see here:
Just make sure to switch membership auto-renewal off just to make sure that no further membership plan renewal charges are incurred after you leave:
If you need to contact 48 support about this then see the links in my signature below.
By the way, it's not really a good idea to post personal details such as your name and phone number on a public forum like this where anybody can see and use them.
