Service charge for R200, for what?

<p>I went into the Telkom Cresta store to have a landline and DSL line set-up, as I was planning to use Vox Telecom as my ISP. The salesman told me Telkom were running a special for R399 pm, where the landline, DSL, router and installation were all included. I thought it was too good to be true byt signed up there and then.</p> <p> </p> <p>I got my first bill for R412,28 (plus about R70 on a pro-rated amount). It seemed close enough, so I didn't worry too much about it. I then see that my debit order rejected for some reason, now I see they've charged me R200 for this? I can't understand why my order rejected and why I'm being charged this amount, it's ridiculous!</p>