Martin Lewis has warned people to check their bank account statement for "recurring payments" that they may need to cancel.
The Money Saving Expert explained the difference between direct debits and recurring payments on his ITV The Martin Lewis Money Show last week.
Speaking to his co-host Angellica Bell Martin asked her if she'd heard of the difference between recurring payments and direct debits.
Angelica shook her head and the Money Saving Expert founder ploughed on - reports Birmingham Live.
He said : "It is called a recurring payment. Have you heard of it?"
Angelica said: "I have, yes, but some people think it is the same as Direct Debits..."
Martin said: "No, a direct debit is when you give your sort code and your account number and they take the money each month.
"A standing order is when you set it up yourself to make a regular payment each month, quarterly or whatever.
"A recurring payment - this is crucial - is when you give the long number on your card.
"A credit card or a debit card.
"Then they can take money from you each month. You have far less rights with that one. You used to not be able to cancel it without contacting the company.
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"You can cancel it now. So, if you want to get in touch and cancel it, contact your bank. If they say they cannot cancel it, they CAN.
"And they owe you the money. You can go to the Ombudsman."
*The Martin Lewis Money Show continues to air each Thursday night at 8.30pm on ITV1.