FNB not honouring a contract

I placed an order online with FNB connect for a device and a sim card. I received the following messages:

1. Thank you for your telecoms application, your ref no is: ****************

2. Congratulations, your order was successful.

I then had a discussion with an FNB banker who confirmed that my application was pending. Once approved, the courier company will have to confirm my address.

I then received the following messages:

1. Your telecoms order has been confirmed. Our courier partner will reach out.

2. Your address has been confirmed (By Digital Planet)

The connect app reflected that my order was confirmed, and my order status read: Pending Delivery.

I then, out of the blue and a few days later, receive a cancellation message which says my order was cancelled for no reason.

Clearly, FNB made an online offer which I accepted. I app**** and was approved for the device and SIM in question, and then at delivery stage FNB suddenly cancels the contract. A valid contract was formed, and therefore FNB was not entitled to cancel. Especially for no reason and just before delivery.

I am a loyal FNB customer my entire life and have nothing but respect for the company. However, I am put off by this behaviour and will fight for my rights as a consumer. This was a clear and flagrant abuse of process and I have been prejudiced as a result.

Kindly reinstate the contract and honour the agreement.