For instructions on your specific membership, have your key tag or name on account ready and call 1-800-748-4949

To cancel most memberships just send a letter saying you want to cancel to the billing company so they know to stop billing you

Paramount Acceptance
4725 Holladay Blvd E
SLC, UT 84117

Certified Mail is recommended because you get a tracking number to see it was received. If you use a stamp, you may want to call and make sure it got there.