Some banks offer the option to block cards via SMS. Check your bank’s guidelines for the specific format and number to use. Send an SMS in the specified format to the number provided by your bank.

Calling your bank's toll-free number is another way through which you can block your card. This method enables customers to directly speak with customer service to inform them about the loss and ...

Your Samsung Galaxy makes it easy to block phone numbers from telemarketers or other undesirable callers. You can block all calls from private numbers and block specific numbers as well.

Your iPhone allows you to block text messages from any number on your device in a few simple steps. You can block contacts already stored in your phone or unknown numbers not stored on your device.