Snapchat **** to sign up to WASP service

I received a MMS yesterday from a number I didn't know, and I had to follow a link to view the picture they have send me. I followed it and come across [URL Removed] where they don't mention that its a subscribing service. I didn't not sign up, but I see that I did have a subscription service when I checked with MTN today.<br> I've stopped it, but I feel that this is the most dishonest way of trying to get money from people.