Worst service ever !!!!¡!!!!

I had an account in December, I resigned in March 2023,requested a settlement,which came back with a 2500 more than my initial balance. I sent a mail to the branch in Eldorado park, with no answer I sent a mail to HO ,with them not answering, instead resenting the same settlement amount t. I then requested them to fetch the machine as no one was willing to answer, after 3 months ,they sent the area manager,however not knowing the story, which I had to explain again ,gave her apologies . She then gave me the exact same amount to settle,still no resolution. I decided to pay ,however ,till today I will not pay as they have not canceled the debit order. Who will pay the charges on the account ,should I pay in cash. Is it so difficult to get the debit order canceled for me to pay. This is the ****test company ever . There are so many complaints but who is listening, should this not be resolved amicably, I will then send my info to the Ombudsman, AND PLEASE DO NOT LET AN AGENT CALL ME AND ASK ME WHAT MY QUERY IS