My trial with on star ends in 3 days how do I get it for free

hi Denise.
To end your Amazon Prime membership:

1. Go to Manage Prime Membership .
2. Do one of the following: To cancel a paid Amazon Prime membership, click End membership. Note: Paid members who haven't used their benefits are eligible for a full refund.

End Your Amazon Prime Membership - Amazon.com

https://www.amazon.com/gp/aw/help/id=201118010
You can end your Amazon Prime membership, or cancel your free trial to ensure it doesn't convert to a full Amazon Prime membership, in the Settings section of Your Account. Manage Your Prime Membership.

Depending on whether you have a paid Amazon Prime membership or are on a free trial, do one of the following:

• To cancel a paid membership, click End membership, which is the second option on the left-hand side of the page. Note: Paid members who haven't used their Amazon Prime benefits, including One Day Delivery, Prime Video, Prime Music and the Kindle Owners' Lending Library will be eligible for a full refund. Paid members who have used their Amazon Prime benefits may be eligible for a partial refund based on use.
  
• To cancel a free trial, click Do not continue, which is the second option on the left-hand side of the page.Note: If you select Do not continue for your free trial, you'll receive benefits until your free trial period ends. Then your membership will cancel, and your card won't be charged. If you decide later in the free trial to continue your membership, you can change this setting back by clicking Continue membership. You can opt out at any time during the free trial period.

You can also choose to set a renewal reminder by selecting Remind me Later in "Do not continue", which is accessible in Your Account, under "Manage Prime membership". (This reminder option won't be available if your renewal date is within the next three days.)
if you need more info on this go to this link.

Cancel prime membership Google Search

why do you expect fixya site to have anything to do with amazon prime
it is for you to contact amazon prime direct yourself and do the cancellation
it is for you to contact your bank and to stop direct debit payments to amazon

You can end your Amazon Prime membership, or cancel your free trial to ensure it doesn't convert to a full Amazon Prime membership, in the Settings section of Your Account. To end your Amazon Prime membership or cancel your free trial: Go to Manage Your Prime Membership. Depending on whether you have a paid Amazon Prime membership or are on a free trial, do one of the following:To cancel a paid membership, click End membership, which is the second option on the left-hand side of the page. Note: Paid members who haven't used their Amazon Prime benefits, including One Day Delivery, Prime Video, Prime Music and the Kindle Owners' Lending Library will be eligible for a full refund. Paid members who have used their Amazon Prime benefits may be eligible for a partial refund based on use. To cancel a free trial, click Do not continue, which is the second option on the left-hand side of the page. Note: If you select Do not continue for your free trial, you'll receive benefits until your free trial period ends. Then your membership will cancel, and your card won't be charged. If you decide later in the free trial to continue your membership, you can change this setting back by clickingContinue membership. You can opt out at any time during the free trial period. You can also choose to set a renewal reminder by selecting Remind me Later in "Do not continue", which is accessible in Your Account, under "Manage Prime membership". (This reminder option won't be available if your renewal date is within the next three days.)

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Cancel Your Amazon Prime Membership You can cancel a paid or free Amazon Prime membership in the Settings section ofYour Account.
Manage Your Prime Membership.

Do one of the following:

• To cancel a paid membership, click End membership, which is the second option on the left-hand side of the page. Note: Paid members who haven't used their Amazon Prime benefits, including the Kindle Owners' Lending Library, One Day Delivery and Prime Instant Video, will be eligible for a full refund.
  
• To cancel a free trial, click Do not continue, which is the second option on the left-hand side of the page. Note: If you have a free trial you'll receive benefits until your free trial period ends. Then your membership will cancel, and your card won't be charged. If you decide later in the free trial to continue your membership, you can change this setting back by clicking Continue membership. You can opt out at any time during the free trial period.
  

You can also choose to set a renewal reminder by selecting Remind me Later in "Do not continue", which is accessible in Your Account, under "Manage Prime membership". (This reminder option won't be available if your renewal date is within the next three days.)

I had a months free trial and paid via paypal. I watched unlimited movies, sometimes two a day for 30 days.