Lingoda Charged My Credit Card Twice After Subscription Cancellation

I registered on the Lingoda website to explore its foreign language learning platform. However, despite canceling my subscription immediately after signing up, my credit card was charged twice, with each charge amounting to approximately $155. These charges were made on December 13, 2024, and January 10, 2025.

Since Lingoda does not provide accessible customer service, I have been unable to report this issue or get any assistance. I am extremely dissatisfied with the company's handling of this situation and would like to file a formal complaint regarding these unauthorized charges.