Hi Julija,
Welcome to Microsoft Community.
I'm really sorry to hear about your experience. Microsoft does have a price adjustment policy that might help in this situation. Here's what you can do:
According to Microsoft's policy, you can request a one-time price adjustment if the price of a physical product drops within a certain period after your purchase. Make sure your purchase is within the eligible period. Microsoft Store Price Match & Protection for Surface & Other Devices
Visit the [Contact Us - Microsoft Support] page. Use the chat option or try request a call for support.
I hope this helps you get the resolution you're looking for. If you need further assistance or have any other questions, feel free to ask!
Your Sincerely
Hahn. W - MSFT | Microsoft Community Support Specialist