Outstanding account even though my debit order went off??

Looks like it's a common problem this month of people receiving they have not paid yet. My debit order went off on the 30th of june and today i received a message my account is outstanding and need to make a payment as soon as possible and that my debit order has been debuted and now i have to pay unnecessary to get my debit order sorted out... for what!! It's on teljoy not me because i paid my account and i did sent all the proof that my account was paid, but they make it seem like its my problem, but as i read the reviews of the last few days im not the only one complaining about this, teljoy needs to up their game and do a better job of looking in to the debit orders, because of them our credit is going down and they do nothing about it. This is so disappointing. *fix your stuff teljoy*