Castle Building Supplies - IWK Telethon Sponsors

When you donate to the 42nd IWK Telethon for Children on CTV, you’ll help fund the IWK’s areas of greatest need, including purchasing new and advanced medical equipment, funding leading-edge research, and upgrading care spaces and technology.

Your generous support makes a meaningful difference in the lives of Maritime children and families who rely on the specialized care of the IWK.

In 2026, Castle has raised $11.00.

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If you donate and have not already registered, you will receive periodic updates and communications from IWK Foundation.

For information about IWK Health visit iwk.nshealth.ca
Read our Land Acknowledgement

IWK Health Foundation Charitable Number: 867558090RR0001

Credit Card Verification Code

The Verification Code is imprinted on credit cards to help merchants verify transactions when the actual card is not present, such as Internet purchases or donations. The merchant uses this number as part of the authorization process with the card issuer.

Please use the images below to locate the verification code for your card type.

A picture of a Visa or Mastercard 3 digit verification code number printed on the back of the card.

Visa & Mastercard

The verification code for Visa or Mastercard is a 3-digit number printed on the back of your card. It appears after the account number or last 4-digits of your account number, in the signature panel.

American Express

The American Express verification code is a 4-digit number printed on the front of your card. It appears above and to the right of the embossed account number.