Contact
We are an online eSIM data store. We accept messages 7 days a week by email and chat and usually reply within a few hours.
Write to us
The fastest way to get help with orders, activation and billing.
Support email
We usually reply within a few hours, typically within 24 hours on business days.
Live chat
The chat bubble in the bottom-right corner of the site — message us straight from your browser.
- Frequently asked questions (FAQ) — Answers about installation, activation, payments and device compatibility.
- Your account — After signing in you can re-send the eSIM email at any time.
Who we are
The store operator and seller (merchant of record).
TvojeData.cz is a Czech online store selling eSIM data plans for the Czech Republic and abroad. It is operated by Byte development s.r.o., listed below as the seller and contracting party (merchant of record). eSIMs are delivered digitally by email right after payment (usually within minutes) with free delivery — nothing is shipped physically.
Legal name
Company ID
Data box
Registered address
Terms and your rights
Terms of service, claims and refunds (usually within 5 business days after approval), privacy and customer reviews.
Response time and support languages
When and how we get back to you.
- We accept messages 7 days a week by email and chat.
- We usually reply within a few hours, typically within 24 hours on business days.
- Support is available in: Czech, English, German, Ukrainian.