bad customer service

I took a Ikhokha mover on a 16week payment plan my only reason I took it on the 5th of November and not on the end of November as I wanted it because my business is only opening in December was because the Rep told me that it takes upto 3 weeks after receiving the device before first payments would go off . On the 15th they attempted to take there first premium and due to the fact that there is no money in the account the debit lapsed and the 19th they attempted again and that debit lapsed aswell when I phoned to resolve the problem as I was promised that the premiums will not be going of before the 25th of November I was told that the Ikhoka rep wasnt truthfull and no arrangements will be adhered to and they will keep on trying to take the premiums I then said It doesnt help they keep on pushing my account into a further minus as the account will only start generating money after the 25th the lady told me she will escalate the problem and that someone will contact me with in the day its now 24 hours later and my problem is being ignored