Should I give my password to the repair shop?

I'm using my brother's account for this. Anyway, my parents brought my phone, without telling me, to a repair shop and now they're demanding for my password. My phone is Android, and it's been experiencing glitches ever since my mom hit my phone on the table. The last time I used it, the phone showed the white screen of death. I'm just really suspicious, as I don't wanna let people access my stuff.

account android parents password phone privacy repair shop