Legal
Contact
Last updated July 3, 2026
The fastest way to reach us is the address that matches your question, below. We read all of these directly — no ticket maze.
General support
Product questions, account help, and anything that doesn't fit the categories below.
support@parityrail.comBilling & refunds
Subscription, invoices, and refund requests. See also our refund & cancellation policy.
support@parityrail.comLegal & privacy
Terms, the data processing addendum, data subject requests, and countersigned copies.
legal@parityrail.comSecurity
Vulnerability reports and suspected security incidents. See security.txt.
security@parityrail.comBusiness information (사업자 정보)
ParityRail is operated by ArcheLab, a sole proprietorship registered in the Republic of Korea. Korean e-commerce law (전자상거래법) requires the following to be disclosed:
상호 (Business name): ArcheLab (아르케랩)
대표자 (Representative): 김준태 (Kim Juntae)
사업자등록번호 (Business registration no.): 518-38-01478
통신판매업 신고번호 (Mail-order business no.): [통신판매업 신고번호]
주소 (Registered address): 서울특별시 강남구 강남대로114길 18, 4121호 (논현동, 필스빌딩)
Republic of Korea
For formal legal notices, use the mailing address above, or email legal@parityrail.com.
Manage your subscription
To update your payment method, view invoices, or cancel, use the billing portal at Settings → Billingonce signed in — it’s hosted by Lemon Squeezy, our Merchant of Record, and doesn’t require emailing us at all.