If you call the provided number, you will be answered by a scammer who will try to make you pay for his tricks. There are major three tricks that the scammer has prepared in advance. 

First trick, the scammer might ask you to provide your personal information for verification purposes! It is including full name, address, credit card details, social security number, and so on!

Second trick, if the victim does not want to provide any info and insists on cancelling the subscription, they might request a cancellation fee to be paid to them. You will be required to pay it now or to be sued! 

Third trick, the scammer might tell you that they have detected a big problem on your network and they may request to connect to your computer remotely for a fix! If you allow them to do it then they will pretend to fix it and you have to pay for the service! You pay by credit card so eventually they still get your info! 

Be aware!