Unprofessional service from accounts dept and customer service

Since March 2020 my colleague Mr Haq has been having with debit orders not going through his ac and each month he has to pay the ac manually. This is very frustrating and to date cell c hasnt sorted out the problem. I would like management to call Mr Haq on cell no *** as he doesn't seem to get any progress from customer service. Regards for Abdul Haq Fareed.