Takealot cancel order whenever they feel like without letting the customer know

I bought 2 items for R100 each and paid R60 shipping for each, the next morning I got an email that your order was cancelled, I was shocked that they just cancelled without asking me so I started reading on their site only to realised they violated all the rules they stand for as an online store.

This is what they have in FAQs under general:

"If a product goes out of stock, it will reflect as such on the website or will no longer be visible on the website. We do our best to prevent sales of products that are out of stock, but due to the digital nature of our business the opportunity exists for an item to go out of stock after an order is placed. If you have already ordered the product on the website when it goes out of stock, we’ll let you know. You will then have the option to be refunded or credited for any amount already paid by you, or you can wait until the product comes into stock again."

The above paragraph is legally binding and it clearly states that they will let the customer know which never happened secondly the options to get refund, credited or wait for the stock to become available.

Ever since the order, I have been calling them to resolve this issue, I made 8 called yesterday and ran out of airtime, today I made 5 calls and again ran out of my second R500 airtime (with proof). Everyone I spoke to, took my from post to poll with no solution a whole lot of *******.

This is ******* and they should to punished for this, what gives them the right to decide on customer behalf. Take their money and after a few days decide, sorry, no more stock, we credited your money into Takealot account -who gives them this permission? What happened to customer rights? What happened to letting you know and decide? What happened to my options?

I want them to take responsibility for their messed and this ******* activities and replace my order with what they have available.

Here is my order No. ********** 1