I had a friend that is in your same exact situation and she actually received a check this sat. (Day before yesterday) and it still doesnt show anything different on portal. Still says deposit info does not match. She has 2 kids under age 16 and one that receives SSI, so they are supposed to be direct depositing directly to the card or bank that receives their normal monthly payment, which is supposed to be done by may 1st. So I would say keep checking the mail and watch for a deposit on the SSI account by sunday. Hope this helps
