Debit order bungling

I am at my wits end. Being haunted by debt collection agencies and facing large amounts on interest and penalties. The matter quickly worsened when Capfin debited my account earlier than the agreed date. From there, many phone calls followed in which the problem was repeatedly stated to your call centre. Every month the same thing happened. This became so bad that I follwed up by sending emails. Capfin just kept responding with generic and pre-scripted replies. I have the email correspondence to prove the fruitless back and forth communications. I do not want them to call me as they, keep talking genericallly and one has to provide them with personal details every time they do. What do I need? They need to go back to the very first phone calls and check the engagements abiut the incorrect debit order dates. I do notice that there are other clients sitting with the same complaints.