Disappointed customer

Hi, I purchased a R40 Telkom prepaid for a landline on the 6 February 2019 from my Nedbank app. The transaction was successful and I received confirmation that my money was deducted. Uptil today Telkom still hasn't given me the airtime. I called Nedbank and they said it was successful on their side so I should call Telkom. I then called Telkom and they said they cant do anything.