Netstar atrocious service

Absolutely atrocious service from their Finance Department. I have had a Netstar contact since the 1990s. Since mid 2023 I have had a major problem with the Netstar Finance Department in trying to sort out my debit order. I have spoken to several of their accountants but every one of them has been full of promises but nothing ever happens. What really makes me angry is that there seems to be no means of escalating my problem further up the management chain. Extremely poor service. Not something that Altron should accept