The same thing happened to me. I was searching to find what this could be and found: http://www.networkagenda.com/ which is a virtual office software. They have a monthly fee of 9.95 and it said that there is a trial period that :
"Various other companies, for a small commission, may give you a free trial use of Networkagenda. The access period may range from a 21 to a 60 days depending on what was offered to you by the partner company. Once the free access period is up, there will usually be a monthly reoccurring cost of 9.95 a month"
Not sure if this company is legit but sounds like what is happening. i called the number and it wasn't working (not sure if it's because it isn't within their office hours) I tried emailing to cancel and I 'll see what happens. Very sneaky and scary.