just use the website
Response from developer
Hi, we sincerely apologize for the inconvenience! It sounds like you are experiencing issues specific to your eTextbook/ device, which we can look into quickly. If you will, please email us at PearsonPlusFeedback@pearson.com with your username or email address linked to your Pearson+ account and the device/ OS in which you are experiencing this issue. We will then quickly investigate and do all that we can to resolve it for you.