I have and have had an ongoing $2.99/month unlimited U.S./Canada calling subscription. I am in the middle of my month. I am unable to make calls. I keep getting an error message telling me that I need credit. If I try to buy credit (which I shouldnt have to do) it tells me I don't need to buy any as I currently have an active one.
As I use my subscription for work, this is quite annoying.