Contact us

Thank you for choosing BiteSIM. We are committed to providing professional, friendly and efficient support.

Customer service

Technical support, order inquiries, complaints and suggestions

Before contacting support

If you experience an issue with eSIM installation, activation, network connectivity or plan usage, please first visit our FAQ page. Many common issues can be resolved by following the instructions provided there.

If the issue persists, email support@bitesim.com. We aim to reply within one business day. Public holidays may cause slight delays.

Information to include

To help us investigate and resolve your issue more efficiently, please include the following information where available:

• Order number and order or payment screenshot
• Device model and operating system version
• Destination and eSIM plan purchased
• A detailed description of the issue and when it first occurred
• Device logs or error codes
• Relevant screenshots, such as mobile data, data roaming, APN or network-selection settings

Protect your information: Please do not send your payment password, card security code, one-time verification code or other sensitive financial information.

Data privacy and rights requests

To request access to, correction of or deletion of your personal data, or to ask how we process your personal information, email support@bitesim.com with the subject line Data Privacy Request.

We may ask for information necessary to verify your identity, such as your order number or registered email address. We will respond within the timeframe required by applicable law.

Service hours

Monday to Friday, 09:00 to 18:00, Hong Kong Time (UTC+8)

Messages received outside service hours, on weekends or public holidays will be handled on the next business day.

Important notes

• Avoid sending duplicate emails about the same issue, as this may delay the support queue.
• Keep your order number in the subject line or email message whenever possible.
• For urgent issues, add [URGENT] at the beginning of the subject line and include your order number.
• BiteSIM will never ask for your payment password, card security code or one-time verification code by email.

Company information

BiteSIM is operated by BITESIM LIMITED.