We understand you want to cancel your membership and we are said to see you go.
Please contact the ccbill billing department to complete your request:
Of your account information and contact ccbill: Click Here for more information including the phone number and email.
You will also find the phone number to contact the support team directly.
Ref: KB Article - Click Here
US Phone: 1.888.596.9279
You can reach their customer support at: click here