First, make sure the payment went through by looking at the transaction information in your bank or payment account if FlixBus charged you but didn't give you your ticket.
Make sure you have the proof of payment and any booking information that you might need. After that, go to the FlixBus Help Center (https://help.flixbus.com/s/contact-us) to get in touch with their customer service.
Fill out the "Contact Us" form, write down what's going on, include proof of payment, and ask for your ticket or a return.
If you don't get an answer right away, call their hotline to get things fixed faster. The phone number to call them is on their website, but it changes by region.
To speed up the process, keep your proof of payment and any correspondence close at hand.
If FlixBus can't fix the problem, you might want to file a claim with your payment provider, like your bank or credit card company.
To ask for a chargeback for the unfulfilled transaction, give them all the necessary proof, such as your payment confirmation and any contact you have had with FlixBus.
If the problem remains unresolved, consider filing a complaint on Xolvie to raise awareness about the issue and inform others.
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