Please follow these initial steps to troubleshoot and resolve issues with receiving codes:
Ensure your mobile phone's time is synchronized automatically:
Android: Settings > General Management > Date and time > Automatic date and time
iOS: Settings > General > Date & Time > Set Automatically
Sync the time settings between your mobile phone and desktop.
Clear the cache and cookies of the Coinstore mobile app or desktop browser.
Attempt to enter codes on various platforms: Coinstore website on desktop browser, Coinstore website on mobile browser, Coinstore desktop app, or Coinstore mobile app.
If these steps do not resolve the issue, you may need to change or unlink your phone number. Please note, for security reasons, withdrawals will be restricted for 24 hours after changing or unlinking your phone number.