1. Who We Are
This website and all associated services are operated by:
Emerge21 Ltd
Trading as 21Stacker registered in NI.
Email: support@21stacker.com
We operate global online skill-based competitions, with prizes paid exclusively in Bitcoin.
These Terms govern your use of the website.
Competition participation is governed separately by the Competition Terms & Conditions (“Competition T&Cs”).
If there is any conflict, the Competition T&Cs take precedence.
2. Eligibility
By using the website, you confirm that:
You are 18 years of age or older
You are legally permitted to access our services in your country or region
You are not located in a prohibited jurisdiction (as defined in our Competition T&Cs)
Attempting to bypass geo-restrictions using VPNs, proxies, TOR, or similar technology is strictly prohibited.
3. Account Registration
To enter competitions, you must create an account.
You agree to:
Provide accurate, complete, and truthful information
Maintain the confidentiality of your login credentials
Have only one account per natural person
Not impersonate others or misrepresent identity
Not create accounts to circumvent entry limits or verification
We may suspend or terminate accounts that violate these Terms or the Competition T&Cs.
4. Prohibited Uses
You must not use the website for:
Fraud or identity manipulation
Attempting to manipulate or influence competition outcomes
Multiple-account abuse
Circumventing geography or age restrictions
Automated access, scraping, or bot use
Uploading malware or attempting to breach security
Any unlawful, harmful, or abusive activity
Any breach may result in account closure, voided entries, and loss of eligibility.
5. Intellectual Property
All content on the website—including branding, design, text, imagery, and code—is owned by or licensed to 21Stacker.
You may not:
Copy, reproduce, or redistribute content
Reverse engineer or attempt to extract source code
Use or modify branding without written permission
You may use the site for personal, non-commercial purposes only.
6. Competitions & Skill Requirements
Participation in competitions is governed by the Competition T&Cs, which cover:
Entry rules
Skill-question requirements
AMOE (free postal entry)
Entry limits
Draw mechanics
Winner verification
Bitcoin prize delivery
If these Terms conflict with the Competition T&Cs, the Competition T&Cs take precedence.
7. Bitcoin Prize Delivery
Prizes are delivered in Bitcoin via:
Lightning Network (small prizes)
On-chain Bitcoin transactions (larger prizes)
A prize is considered delivered when:
The transaction is successfully broadcast (on-chain), or
A Lightning payment is successfully sent
Bitcoin transactions are irreversible.
We are not responsible for:
Incorrect or incompatible wallet addresses
Lightning invoices that expire
Lost keys or inaccessible wallets
See Section 9 of the Competition T&Cs for full details.
8. Fees, Pricing & Payments
Entry payments are handled by third-party processors (e.g., Lightning wallets).
We do not store card details or private keys.
Pricing may vary based on promotions or regional considerations.
9. Affiliate Links & Tracking
We operate an affiliate programme.
Your visit may trigger:
Affiliate cookies
Referral codes
Attribution IDs
In the UK/EU, affiliate tracking requires cookie consent.
See the Cookie Policy and Affiliate Terms for details.
10. Cookies & Tracking Technologies
We use cookies for:
Website operation
Security & fraud prevention
Analytics and performance
Affiliate attribution
Marketing (with consent where required)
You may manage preferences through our cookie banner.
Full details: Cookie Policy
11. Privacy & Data Protection
We process personal data according to our:
Privacy Policy
This includes details on:
Information we collect
How it is used
Legal bases under GDPR
How long data is retained
Your data rights and controls
By using the site, you agree to the Privacy Policy.
12. User-Generated Content
If you submit reviews, comments, or other content, you grant 21Stacker a non-exclusive, royalty-free, worldwide licence to use, display, and reproduce that content.
You must not submit content that is:
Illegal
Harmful, abusive, or defamatory
Copyrighted material you do not own
We may remove content at our discretion.
13. Third-Party Links
Our site may contain links to third-party sites.
We are not responsible for:
Their content
Their policies
Their accuracy
Their security
You access third-party sites at your own risk.
14. Disclaimer of Warranties
The website is provided “as is” and “as available”, without warranties of any kind.
We do not guarantee:
Continuous, uninterrupted access
Error-free functionality
Virus-free environment
Accuracy or completeness of information
Compatibility with your device or browser
Use of the website is at your own risk.
15. Limitation of Liability
To the fullest extent permitted by law:
21Stacker shall not be liable for:
Indirect, incidental, or consequential losses
Loss of profits or opportunity
Failed payments or Bitcoin network issues
Incorrect wallet addresses or inaccessible wallets
Delays or congestion on Bitcoin/Lightning
Tracking failures due to user-side settings
Website downtime or maintenance
Errors caused by third-party services
Our total liability is capped at:
The total amount paid by you for entries in the 12 months before the claim,
unless prohibited by law.
Nothing limits liability for fraud, misrepresentation, or death/personal injury caused by negligence.
16. Account Suspension or Termination
We may suspend or terminate accounts for:
Breaching these Terms
Violating Competition T&Cs
Fraud, manipulation, or multi-accounting
Chargebacks
Failure to verify identity
Abusive behaviour
Entries may be voided if obtained through prohibited conduct.
17. Modifications to These Terms
We may update these Terms periodically.
Changes take effect when posted.
Continued use of the site means you accept the updated Terms.
18. Governing Law
These Terms are governed by the laws of Northern Ireland,
subject to mandatory consumer laws in your own jurisdiction.
All disputes shall be resolved exclusively in the courts of Northern Ireland.
19. Contact Us
For questions:
support@21stacker.com
Emerge21 Ltd T/A 21Stacker