Debit order issue

I am soo gatvol with tracker and this Snazo agent who keeps on putting the blame to me regarding my bill. I took a contract on the 27 of June 2024, sales agent only advised that the debit order will include the prorata amount, she did not specify which month they will be debiting since installation was done on the 27 of June. Come July they billed me more and I had to reverse whereby I was never told tracker bills me in advance. All they've been doing is, they go and debit my account on random days whereby I did not agreed to, like the 10 or the 18th. The reason why they do that is to bill me penalties. I have emailed my bank statement showing I had money on the 26 which is the date that they should debit but they chose not to and go to debit me on the 10nth of the following month. I need all the penalties accumulated from October to be refunded to me since I have paid it, all I get from them is, debicheck debits at any time, they must remove me from that debit check and refund all those penalties, I have never have joy since the installation, agents there are rude and *********** they don't want to take responsibility, I will never suggest anyone to take a contract with them.