It is small print at the bottom of an email that you get that you are now enrolled in a monthly service. Call 800-493-2392. They will say they can only credit you back for 2 months, hopefully you caught it in time. If not ask for a supervisor and let them know you will be submitting complaints every place you can. They immediately said they could credit the other 2 months that I was billed.
Your account logs this as an "Order" but no where does it say you have an active monthly subscription. They do a good job of hiding it from you. If you search for this issue on the internet you will find hundreds of complaints.
You also don't need to pay to freeze and unfreeze your account, that is a completely different service I have been informed. They imply through the on line process that you need to pay…just walking you down the path to getting you signed up for the unexpected $19.95 per month subscription.
Bad on YOU Transunion for misleading and scamming your customers.