If I purchase a Extended License image - do I still need to have a photo credit on all items I use this image on. I don't see anything on this in the terms and conditions.
Thank you for your time.
If it is required by the standard terms for a standard license there is no reason why it should not be required by an extended license.
But may be it's not required at all to credit, as there are only a restricted number of uses that require credit.
A different remark: crediting should not be regarded as a bad thing. It shows that the asset has been properly licensed.