(My sky app) hasn't worked for a year.

[trys]

My (my sky app) hasn't been working for over a year. I can not access my bills, my data piggy bank or change any details at all. I have been phoning sky support every month or so but no one has been able to resolve the issue.

[Mark39]

Tell us in what way it's not working. Error message? What happens when you try to open it?

What have Sky said to try?