dont take contract behalf of telkom

i have taken a upgrade on behalf of telkom threw sell direct and inform them it must start from the 01 August 2019. when they deliver they activate my upgrade and i forfeit my data accumulated. i send back the device. They told me its going to take 21 days for cancelation and its a month now. i pay telkom the first month and now the new rate but dont have data for 2 months.

Please be carefull taken up any contract will sell direct. if you not happy you will pay but they promise to cancel. i phone then now they dont pick up and cancel the line.