Short answer: contact 4S support if you need an invoice or receipt for your purchase.
What to include
- Payment email.
- Order number if available.
- Company name, billing details, or tax information if required.
- The eSIM destination or purchase date.
Need help?
Contact 4S support through support@4s.net, a Zendesk support ticket, or Zendesk live chat. Do not reply to hi@4s.net; it is an automatic order and installation email sender.
When contacting support, include your order email, ICCID if available, destination, phone model, and screenshots of the error or SIM/eSIM settings page.