[US] How to get rid of zelle scam money

Got sent about 2.5k through zelle to my bank on 04/05. I’ve been scammed before with the fake check scam so immediately I’m on high alert. The same day I get three phone calls (didn’t answer) and 1 text saying it was a mistake and if I could send the money back. They only ever sent one text and weren’t pushy in it. They even said on their message that they contacted their bank to try and reverse the transaction

I never responded and I contacted my bank asap. Filed a claim saying a stranger sent me money and I need you guys to reverse whatever.

From my understanding the money has « cleared » it’s no longer pending and it’s just sitting on my checking account because I’m too scared to move it. Its been over a week already. Finally got a letter from my bank saying « they noticed the transactions cannot be resolved by our group. As a result, we forwarded your claim to the correct departments ».

The thing is in my banks letter they don’t even list what department they forwarded it too. Should I contact zelle? The only update I got from my bank on 04/10 was that this transaction was regarded as suspicious and that the amount isn’t authorized. I should not spend it to avoid overdrafting.

This is most likely 99.99999% a scam so I don’t feel guilty or bad for not answering the person that sent it. However it’s stressful seeing that money in my account and I want it gone. Is there anyone I can contact or say to my bank? Thank you