Message says I have an outstanding bill

[blu5555]

I was looking at upgrading my broadband but get this message “Before you continue with your order, it looks like you've got a bill outstanding”. When I check what‘s owed it says £0.00. Why does it do this? I pay by direct debit. 

[caesarome]

@blu5555 

It must be an error so if you want to upgrade give Sky a call on 150 from your lanline phone or a Sky mobile.