We regret to inform you that our mobile app currently does not support the modification of phone numbers. However, you can easily update your phone number by following these steps using a laptop or PC:
1. Visit our official website at www.coinstore.com.
2. Log in to your account using your current credentials.
3. Hover over the profile icon in the top right corner and select [Account Security].
4. Click on the "Change" button next to "Phone".
5. Enter your new phone number. A verification code will be sent to your new phone number for confirmation, as well as to your current phone number and email address.
Please be aware that withdrawals are restricted within 24 hours after modifying your phone number.