My account has an unrecognized charge.

On the 4th of June 2023, I woke up to 4 Uber Trip notifications on my banking App. I immediately canceled my banking card. I then reported the ***** to the Uber Support site. They requested me to send the first 6 digits, the last 4 digits, the Expiry Date of my card, and the screenshot of the transactions; which I did. They later responded that they cannot see the transactions on their side. They then requested that I send the statement and I did send the Transaction History. They came back saying they still could not see the transactions and that there is nothing that they can do I must follow up with my Financial Institute. I am not happy with their service because it doesn't seem like they have put much effort into looking into this issue. I lost money, more than R800. I stay in South Africa and I haven't been out of the country in about 5 years. Apparently, the transactions happened in Chile. Uber, if you can see this, please go back to this issue and solve it for me please. I need my money.