Charged incorrectly

I have used the services of this company on 3 occasions. First time was excellent. second time the cleaner logged her hours long after she left my property. She still had the audacity to message me to ask me for taxi fare (which I ignored). The third, and last time was the worst. I had to leave my office while the cleaner was still busy. Upon my return I saw that I was charged for 5 hours. She took just over an hour cleaning a fairly large office and I have no idea how it could have taken her 4 hours to clean a much smaller office. I've been trying to sort out this problem with Zenande from the support desk but my last two messages have not been responded to. I was supposed to use this company every 3rd week but I've now canceled all future cleans. Such dishonesty.