As part of our service, you get access to all subjects. We currently do not plan allowing students to pick subjects, the price would be more expensive in that case. The price is what we think two subjects are worth. Meaning you can use the other subjects at your disposal to help with EEs, IAs and Study such as between the Mathematics. We want to provide the best service possible, meaning we keep our price as good as we can. Meaning you pay for two subjects, and get access to the rest.