Debit order not within agreed date.

I am very disappointed and unhappy with capitec bank, at the beginning of this month I went into the bank to replace my lost card and get a letter of confirmation for my account, the consultant then sold me a funeral cover which I declined as I informed her I do not like having any debit order in my account as they cause a lot of issues, she informed me the funeral cover is from Capitec and that it will go off on my preferred date blah blah blah, eventually I agreed and I informed her the first debit must only go off in August as my first salary will be in by then, she agreed. to my surprise when I deposited money into my account they debit the premium for the funeral cover, I went into the branch to query this and they told me I agreed to be debit in July there was no way they would have chose a date in August I told the consultant that was incorrect the mandate I agreed on was for August, she told there is nothing I can do,I told her that is incorrect as I am allowed a cooling off period as well and I also want to cancel this funeral policy as they did not adhere to the date I wanted and had agreed on with the initial consultant who sold the policy , she told me there is nothing she can do and told me to send an email to their complaints department, which I did till now no response and when I go into the branch all I get is bad customer service. I was my refund I did not agree to being debited this month.