Listening exercises not working

To whom it may concern, 

It has been about a month since I realized that all listening exercise worksheets I have chosen are not working and even the past ones aren't working either. I have been using Liveworksheets over the years, and I have always had good service. I can only imagine this is a departure from your usual high standards and  I am sure you will be able to resolve this situation in a satisfactory way.

Yours faithfully, 

Ana Brito