To report fraudulent activity or dispute a transaction:
1. Log into your M1 account.
2. Click “Spend”
3. Click “Transactions”
4. Select the transaction you’d like to dispute.
If you have more than one transaction, you will have to select each individually.
5. At the bottom, click “Report issue with this transaction.”
6. Be sure to lock your card.
Locking your card doesn’t cancel your debit card. It simply stops future transactions from happening. You can unlock your card at any time in the app.
7. Contact support and include why you are disputing this transaction.