When I entered my serial number to activate Photoshop CS4, it said that the number is not valid. However, the customer service Adobe told me that the number is valid. What should I do?

When I entered my serial number to activate Photoshop CS4, it said that the number is not valid. However, the customer service Adobe told me that the number is valid. What should I do?

Error "serial number is not valid for this product". Creative Suite

Tags: Adobe

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