Currently have a buyer for a thermal I’m selling. The buyer wanted to pay via Zelle originally but being I have a new account, I can only receive up $5,000 per week. The buyer then asked about a wire transfer and would need my routing number. Not totally familiar with any of this, I’ve always just used PayPal or Venmo (I know, not 2A friendly). I know a routing number is probably necessary for a wire transfer but where does this become “scammy”?