Pathetic communication from MTN South Africa

We did an online application on the 24th Jan 2022, we received a call from the agent to finalize the application. During this call there was no mention of no stock of the iPhone 13 128g. Today is the 1 Feb after numerous calls as to why we didn't receive the simcard and device. I was told it's because of stock. I had ported my number from cellc and lost my airtime and data awaiting my new contract number. Now I am buying airtime which I'd an added cost to me. This is false advertising. They should have notified us that there is stock issues or remove the device completely from the online portal. I would not have taken the contract had I known there was no stock. If I could rate them zero I would!!!!!