Plugin does not work properly with more than 1 tax slab

The plugin works well when I apply single tax rate, which is standard tax. I live in India and my store works on 2 tax slabs accordingly to government regulations. Standard tax is 12% (6% for state & 6% for central) and Reduced tax is 5% (2.5% for state and 2.5% for central government). When people order for mixed products, the plugin gives incorrect tax name at the subtotal, however the tax rate is calculated properly. For example, if the order contains 12% and 5%, the subtotal will calculate properly but the display will show only 5% tax, which is misleading the customers. I have seen numerous forums about this issue but the developer is not taking any action. Disappointed due to this.