If you're using a friend or family member's free Prime shipping and you don't live in the same house, you might need to pay another monthly cost. According to an updated customer service page first reported by The Verge , Amazon is ending its Prime Invitee benefit sharing program on Oct. 1.

The program is being replaced by Amazon Family, which includes many of the same benefits as Prime Invitee. But Amazon Family only works for up to two adults and four children living in the same "primary residential address" -- a shared home. That means no more free shipping to other addresses.

If you're the beneficiary of someone else's Prime Invitee benefits, you have one more month to take advantage of the current program before the changes take effect.

Starting in October, you'll have to get

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