Bad business

What I don't understand is how does tell on do business with selldirect while they are *********** and do not deliver on service rendered or give out wrong orders.I have two cellphone contract with telkom and they sent me an sms notifying me that I Am due for upgrade and few weeks later I get a call from a Ayisha who said she was calling from tell on in connection with the upgraded which I agreed to upgrade to Huawei P10 lite and when they delivered yesterday and today respectively they delivered wrong phones the Huawei P10.and now they have disconnected my one old SIM card.the worst part is tell on does not take responsibility for the action taken by selldirect on their behalf and when you call selldirect you don't get hold of them and now I am stuck with two wrong phones . I am very unhappy at the moment and I need this matter resolved.