أحسن الله إليكم My parents used to buy gold by exchanging the old gold and adding extra money but since they got to know that this is forbidden they stopped Alhamdulillah. My question is- can we use that gold which they bought using that prohibited method? And what if my dad forces me to wear it?

Ustadh AbdulAziz al-Haqqan

Yes u can use and Alhamdulillah that u repented.