Poor communication between departments

I wrote to Hello Peter on 21st June and had a reply from them on the same day. I requested to have my account cancelled at the end of June and have ported my phone back to the original provider with Rain's permission. Today at 5.52am i get a messgae that R569 has been taken off my credit card. Later I get a notification on my phone to say that my internet has been cancelled. Why have they taken money off me.? On 28th June i receivd an email from them re cancellation ***