Amended refund

We had to file an amendment to our 2020  taxes. I received a letter that we will be receiving the payment on 4/1/22. My question is, will it be a direct deposit or do they always send a check? I can't get through to anyone at the IRS and the bank acct we had in 2020 has been closed. Would they send it to the Credit Karma account we used for this years refund?