Travelocity Can't cancel or even contact them

I book a package (hotel, flight and car rental) with cancelation protection in June, 2021. I try to contact them to cancel the package by virtual chat and calling them, not being able to reach them. They promised I'll be called back in 6 hours. I don't recieve any call by the time pormised and contacting my bank to reverse the transcation. They called back the next day and I missed their call, calling back and being ask to leaving the call back number as before.

Now the investigation of my bank is done. I have to response the $854.84 hotel reservation, and $237.80 for the flight. They claim can't find my liternacy and I'm not being able to get refund after the travel date.