Order not received but i have paid already.....

I have place an order with Telkom online for a mobile contract device on the 11 April 2018. My account was deducted on the 18th April for the device and till today i have not received my device nor can the call centre specify when i will receive it as every time i call they are either off line or not sure to when stock will be received as now today they told me there is no stock but when i placed the order there was stock on the device i ordered. I'm really not impressed for the first time client i receive this type of treatment. Not even i phone call from Telkom to keep you up to date, costing me money and time calling them everyday........