Hi I have not received a refund

After you request a refund you'll receive a status update by email within 48 hours. If your request is granted, the money is returned to the payment method you used. The time it takes for the money to appear on your account or statement depends on the payment method:

- Store credit (e.g., Apple ID balance): up to 48 hours

- Mobile phone billing (payment through your phone service carrier): Up to 60 days

- Other payment methods (e.g., credit/debit card): Up to 30 days for it to appear on a statement.

For apps and media you can also sign into https://reportaproblem.apple.com to check if the status of your item is "Refunded".

From: 'Check the status of a refund for apps or content that you bought from Apple' --> https://support.apple.com/HT210904

If you need to contact Apple about this, click on this link --> https://support.apple.com/choose-country-region/ and choose a path that gets assistance from Apple staff.

How long ago did you get the email saying it would be refunded ? Refunds aren't instant, a refund to an iTunes account's balance can take a few days, a refund to a credit card can take 7 to 10 days or so