I signed up for a one week trial on a Saturday, 19 March. I found the selection of cards poor and could not find suitable cards on the two occasions that I tried to use the service. On Saturday, 26 March I went online to cancel my membership only to find that you cannot cancel the membership online. Instead one is directed to call their 800 number but that is only available 8AM-8PM Mon-Fri. So you can't cancel your membership over the weekend. I forgot to call on Monday and just remembered when I saw that my credit card had been charged... read full review »