Unhappy with Makro call centre and billing department

I am so unhappy with Makro more especially their call centre and billings department. I purchased a tv on Black Friday 2016 and it has been hell ever since. I registered for a debit order and they never got it right until I gave birth in August 2017. Then in April 2018 I paid a huge some towards my makro card and before I did that, I called them and asked if I make this payment will my debit amount decrease they agreed, which was a lie instead it went abit higher. I called again after calling 7 times and spoke to Meagan who told me she will change my account to revolving instead of 24 months for them to lower my instalment, that did not happen. Do yourself and favour and do not bother with Makro. I am so unhappy the only joy I have is the fact that I am almost done paying so I can close this card.