After you file

I don't understand what's going on,

You say your tax refund might be rejected by Credit Karma if your account is closed but ours wasn't it went into our account and we had no idea it was closed. I'm so confused on how a prepaid account can be closed this Credit Karma isn't a credit card it was debit. There are many of us who depend on our income tax for personal reason and we trusted Credit Karma with our funds. Why is this happening? I was told that all y'all could do is send a check but after reading other complains I really lost on what's happening and I need my money for so many reasons. Please gives us strait answers. Did something happen in y'all's end and don't know how to fix it? I was a very happy customer and had been one for many years but now just confused what's going on?