iPod touch will not factory reset it keeps saying disabled for 15 minutes

My daughter got a brand new iPod touch seven generation. She locked her self out within the first 10 minutes of having it. She can’t remember password and every time I try to factory reset it says the iPod touch has been disabled for 15 minutes. I removed it from my IRA tunes account, I can’t seem to get it to factory reset. Does anyone know how to force reset without using the buttons.