Support

How can we help?

Find answers below or send a message — we're here to help you stay connected.

Email support

Include your order number

Send us a message and our team will get back to you.

support@esim4.example

Quick links

Self-service resources

Installation guide
Scan, tap, or type — every way to install your eSIM.
Supported devices
Check if your smartphone is compatible with eSIM.
FAQ
Answers to commonly asked questions about eSIM.

Your activation code

Three ways to use the same code

Your order page shows a QR code, a one-tap install link, and the individual fields your phone asks for. They are all the same eSIM — you only need one of them to work.

An eSIM installs only once. Don't delete the plan from your phone until your trip is over, because the code can't be redeemed a second time.

Read the full installation guide

Scan the QR code

Needs a second screen

Open your order on a laptop or another phone, then scan it with the phone that will use the eSIM. A phone can't scan a code displayed on its own screen.

Tap "Install on this iPhone"

iOS 17.4 and newer

Open your order page on the iPhone itself and tap the install button. iOS passes the code straight to the eSIM installer — nothing to scan or type.

Enter the details manually

Works on every device

Choose "Enter details manually" on your phone, then copy the SM-DP+ address and the activation code from your order page. Leave any confirmation-code field blank.

Troubleshooting · 5 issues

Fix it yourself

Pick what's going wrong — symptoms and the fix sit together on the right.

Getting a faster answer

What to include when you contact us

General inquiries
Questions about plans, coverage, etc.
Urgent issues
Put "Urgent" and your order number in the subject

Business inquiries

Looking for bulk orders, corporate plans, or partnership opportunities?

business@esim4.example
TerminusFinal stop
ES
esim4

Last stop.
First signal.

Data plans for wherever the route goes next. Pick a destination, install by QR, and your validity starts on the first connection.

  1. Pick a stop
  2. Scan the QR
  3. Online
Ground crewContact line
Write to ussupport@esim4.example

Questions about installing, choosing a plan or an order? Send a note and add your order number if you have one.

Line A · 6 stops

Regions

  • Europe
  • Asia
  • Americas
  • Middle East
  • Africa
  • Oceania
Line B · 6 stops

Popular destinations

  • United StatesUS
  • JapanJP
  • United KingdomGB
  • FranceFR
  • ThailandTH
  • AustraliaAU
Line C · 4 stops

Support

  • How It Works
  • Supported Devices
  • FAQ
  • Help & Contact
Line D · 4 stops

Account

  • Dashboard
  • My eSIMs
  • Wallet
  • Cart

Legal

  • Terms of Service
  • Privacy Policy
  • Refund Policy
  • Cancellation Policy

Operator

Company and registration details are listed in our Terms of Service.

Payment

VisaMastercard
© 2026 esim4. All rights reserved.
ES
esim4
HomeeSIM StoreHow It WorksSupported DevicesHelp
Can't scan the QR code
eSIM won't install
No signal at destination
Didn't receive eSIM email

Didn't receive eSIM email

Symptoms

No email after purchaseCan't find QR codeEmail is empty

Solutions

  • Your QR code always lives on your order page — go to Orders
  • Check your spam or junk folder for the confirmation
  • Search for emails from our domain
  • Contact support with your order number
Still stuck? Email us ↵View all FAQs
Data running out quickly

Didn't receive eSIM email

Symptoms

No email after purchaseCan't find QR codeEmail is empty

Solutions

  • Your QR code always lives on your order page — go to Orders
  • Check your spam or junk folder for the confirmation
  • Search for emails from our domain
  • Contact support with your order number
Still stuck? Email us ↵View all FAQs