What do I do if my dual shock controller has two circle buttons? [closed]

Solution 1:

It is more than likely that this is just a cosmetic problem. During assembly, someone grabbed a second circle button and placed it in a slot intended for one of the other buttons. Pressing it should result in the proper input, much like swapping the keys on a keyboard.

Cosmetic or not, your best option for fixing it is to contact the manufacturer's support (in your case, the support page for SCUF is here). After providing them with whatever information they require (proof of purchase, picture of the defect), they will likely provide details on how to ship it back to them so they can verify the error and send you a replacement. This process may take some time to complete.