Removed cameras from account, but need footage

Long story short, I just moved and was selling items I no longer needed. A woman and her friend bought a dresser from me that they picked up. A week later and the woman filed a dispute with venmo to get her money back and for whatever reason, venmo automatically refunded her. I don’t even understand what happened, but I literally just received the dispute email. Anyways, if my doorbell cam was working properly that day (I’ve often had issues with battery life and delayed recordings), I would be able to show that I helped them load the dresser. The problem is that I let the buyer of my house keep the doorbell, so I deleted it from my device list. I didn’t know this wouldn’t allow me to see all previous recordings. Can I somehow view any of them??! This would help stop a scammer.