GET IT RIGHT - PLEASE!!!!

While their mobile service is excellent, they sadly lack when it comes to their invoicing processes. If I look on the app, I get a totally different account amount to that on their website and when I finally get their invoice two weeks into the next month it has a totally different total to both the app and the website. THEN I get nasty little pop-ups telling my I am in arrears even though I have the paid the amount that was the highest on either the app or the website. I think it's because they want you to give them a debit order which I will never do. This has been ongoing for years. Get you act together, SYNC your website, app and change your invoicing arrangements and make your customers 100% happy.