Zelle blocking email

Using Zelle as a payment method, the seller’s email is being blocked. I confirmed with Zelle support, i cannot add this email. They didn’t say why. What are the options? Am i being scammed?

Open a dispute please with cmd+o. I assume the other trader got blocked from Zelle or something.

Is this TD Bank? We’re seeing an increasing number of complains that buyers with TD Bank accounts are blocked from sending to their sellers via Zelle.

For information:
TD Bank is on this pitiful list:
20+ Banks that Have Banned Cryptocurrency Trades With Credit Cards