I bought moxxi's heist add on, but I can't start it

I have full game on disc, and today I bought Moxxi’s heist online as an add on, but when I click on it next to the Moxxi’s bar, seems I didn’t buy it at all! And ask me to buy again… What’s wrong?

You need to download it. Also make sure the game and DLC is for the same region.

Seems you’re right. My disc and dlc are not from a same region. Is there any way to refund?!! :frowning:

Contact PS Support.