Yellodata is taking away more money then they should

<p>They have been taking money from my account more then they should.It was suppose to be R59 but then they billed me R450. I have reversed this amount yet they expect me to still pay this amount for a service I did not receive. These are *********, so stay away from them please. They will probably try to bill me again the end of this month, unable to tell me the details of this amount.</p>