I have Polski krok po kroku 2 book, activated it, started learning, but i missed a little extra information, so i bought the e course, since it would unlock the function "Grammar and vocabulary information" inside the online platform. Everything seems to be working, except that button, could you kindly inform me, where, how and when i can get it working? And are there other options that you advice me to buy, while doing this book?
thank you for your inquiry. I will check it and send you email about this issue.