Hello,
Some items in Destiny are associated with your Bungie.net profile, and other items are associated with the platform account you play on. The Beta emblems are one of those said items that are connected to your platform account. This means in order to access those items on your PS4 account, you had to play the Destiny Beta on your PSN account.
Destiny does not support data/progress transfers between platform accounts. https://www.bungie.net/en/help/article/12211
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Thank you for the fast respond that's sad to hear.