Postbye
Mails a certified cancellation letter for your subscription and emails you the delivery proof.
Postbye writes and mails a certified cancellation letter to any subscription company — Netflix, Comcast, Planet Fitness and others — on the next business day, then emails you the signed delivery confirmation once it arrives. The letter cites US consumer law (CCPA) to also request deletion of stored payment data where applicable, and the company follows up afterward to confirm the cancellation actually went through. One reviewer reports it took nine days to cancel an internet subscription they'd been stuck on for three weeks themselves — faster than DIY, but not instant.

What holds up
- +Sends certified mail with tracking, so you get signed proof the company received it
- +Follows up after delivery to confirm the company actually processed the cancellation
- +Letters are prepared same-day and mailed the next business day
Mind the limits
- −Physical mail still takes days — one reviewer's cancellation took nine days end to end
- −No mailing on Saturdays, per the weekly dispatch schedule shown on the page
- −Price isn't shown on the page — you approve the letter before paying, but see no number upfront
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