Version: 1.1
Last Updated: 23 June 2026
Have a question regarding our strategic consultancy services or professional digital assets? We are here to help.
Our professional support team aims to respond to all inquiries within 1–3 business days.
Company & Contact Details
Legal Entity: Sylwester Jan Siudym — Entrepreneur Individuel
SIREN: 106 711 872
SIRET: 10671187200015
APE/NAF: 7021Z — Conseil en relations publiques et communication
Address: 12 RUE Vieille du Temple, 75004, Paris, FRANCE
Email: info@sylwestermarketing.online
Phone: +34671141701
Website: https://sylwestermarketing.online
How to Reach Us
Primary Contact (Email)
info@sylwestermarketing.online
This is the most efficient route for:
Project inquiries
Strategic consultations
Technical support
Billing questions
General assistance
We aim to respond within 1–3 business days.
When to Contact Us
Consultancy & Project Inquiries
Contact us for:
Project scoping
Tailored quotations
Strategic planning
Service-level agreements (SLAs)
Technical clarifications regarding our PR and communication services
Digital Asset Access
If you experience issues with:
Download links
Account access
Digital frameworks
Templates
Strategic resources
Our support team will assist in restoring access promptly.
Payments & Refunds
We operate a 14-day satisfaction policy.
For Bancontact users, we provide direct manual refunds for up to 365 days after purchase, as this payment method does not support traditional chargeback procedures.
For assistance regarding payments or refunds, please contact us directly at:
info@sylwestermarketing.online
Data Protection & Privacy
You may contact us to exercise your rights under the GDPR, including:
Access to your personal data
Rectification of inaccurate information
Data erasure requests
Restriction of processing
Objections to processing
Data portability requests
Data Protection & Privacy
We process your personal data solely for the purposes of:
Handling your inquiries
Providing professional support
Delivering our services
Preventing fraudulent activity
Complying with legal obligations
As a resident of the EU/EEA, your GDPR rights are fully respected.
For more information about how we collect, process, and protect personal data, please refer to our Privacy Policy.
© 2026 Sylwester Jan Siudym — Entrepreneur Individuel. All rights reserved.