Breaking purchase rule airline ticket

I am European citizen and I wished to travel from Cape Town to Nice (France) for the 80 years of my mother. This is a very important moment for me and my family because I see my mother only every 3 years. To celebrate that, I decided to bring nice gifts and was looking for a flight with 1 checkin baggage (23kg).

The 23 november 2019, I was looking for a flight ticket with checkin baggage on KLM website.

After usual registration process, just before the paying process, the price was 18,220.93 Rand and the ticket condition clearly indicated that I have *** 1 check in baggage included (23 kg) *** . I double check because this was very important for me and even made a copy of the screen.

Some minutes latter after I paid with my American Express Card, I had the ticket by email.

I was very very upset to see that I will have not checkin baggage included.

I contacted KLM Customer Care with Twitter.

After 7 days, they finally rep**** and proposed to update my ticket with an additional cost to have 1 check-in baggage (which will be probably 200 or 300 euros).

This clearly break the purchase rule of airline ticket and is not acceptable. I know my right as a consumer. This is *******. I use to fight against what is unfair and will not hesitate to take legal action against KLM even if that's take months...

But my flight will be in the end of December 2019 and I am afraid KLM won’t be able to react before my departure.

I won’t have my checkin baggage which was included in the commercial proposal I paid for, and no gift for my mother and her 80th birthday…. This is very very sad.

Just because KLM can’t respect the regulation and have unfair ticket sale process.

I am asking KLM to deliver ASAP a new ticket with my one checkin baggage included.

Hello Perter and its community is my last hope. Thank you very much if you can help me, I will be very grateful (and my mother happy to have her 80y birthday gift).