Rain charging me for a cancelled service

I cancelled my service and was informed that a rain South Africa representative would collect the router. Despite this, money has been deducted from my account twice after the cancellation.

This is highly unacceptable – what exactly am I paying for when my service is no longer active? I request an immediate refund of the amounts deducted and confirmation that no further debits will occur. I also expect you to expedite the collection of your router as previously agreed.