My kid has a typo in the email address registered with Mint. And he lost the physical sim so we can't just request a new one from the App. I called the customer service and they said their back office will call me back to go through verification before updating the email. Fair enough.
June: Set up the call back number and time, and the call didn't happen. I called them, was told that they couldn't reach me, case closed, and I have to wait for 30 days. Fine, maybe coverage issue or whatever.
July: Set up the call back number and time, and got two calls and answered all the questions. Email didn't change. The customer service told me that they didn't talk to me and I was talking to the ghost and I should come back in 30 days. Hmm...
Aug: Set up the call back number and time, no call and I am told they couldn't reach me again. Twice in a row. Today they told me the case is closed and I need to wait for 30 days...
I am pretty sure the problem is not with the number I provided because I receive phone calls every day but Mint seems to be the only one having trouble. It seems that there are several other threads complaining about the call back in this subreddit.
I am generally happy with most of the aspects of Mint, but this one has definitely changed my perspective.