We currently have limited customer service staffing due to Coronavirus (COVID-19) safety precautions. We encourage you to find quick answers to your questions by searching the community forum, visiting our Help Center, or messaging us (message response times will be delayed). Thank you for your patience.
New to the community? Welcome! Please read our Community Rules and Guidelines
I'm sorry to hear that there's an unrecognized transaction. If you've made a purchase for that amount from a merchant recently, it's possible that their trading name is different than the one you expected to see. If you did not make any transactions, you can report it if you believe it to be unauthorized activity.
I hope this helps!