If so, perhaps this is a new company. If the site doesn't list access numbers, request them by e-mail or telephone. If the access numbers aren't a local call for you, move on. It makes no sense to get a flat-rate ISP, only to pay a huge phone bill every month. You probably want a flat rate with unlimited access.
Services charging by the hour can be expensive.
These can sometimes be cost effective and convenient. Also, look for toll free calls. Often smaller, local providers provide the best service. You will need an e-mail account to communicate with the module instructors. Check with your provider if you do not know your e-mail address.