Purchase but still waiting for product key on email

Hi i have paid the Norton 360 antivirus subscription for 2 year but i got emails from Norton

“We want to let you know that there is an issue with processing your order. You will receive an email confirmation with information about how to download your product when your order has been processed. We apologize for the delay.”

Now i am waiting for the product key on email but 1hr gone still i dont get any email from Norton. Now what i will do and how much time i have to wait for it.i try to chat with Norton but i dont get any option and email. where i can tell my problem.
Thank You

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