File a claim with your bank. They charged me
An additional 2 nights after hopper said they would refund my money. Instead they went without my consent n charged me an additional 2 nights. I was robbed for a total of 3 nights. Without being able to contact any support. A total
Scam!

Nothing. They ended my case suddenly after telling me they have been working on my refund for a month and a half. This is not right and not legally right.

I recommend you to call your bank and submit a dispute for your purchase. On May I submitted my claim and my bank gave me my money back, they started an investigation and the results were on my favor, my claim was accepted.
I recommend also, do screenshots about all information that you have to prove your claim, just in case your bank ask for it (my bank did not asked me to prove it). After reading all bad reviews about Hooper, I did not take a chance to deal with them, because probably they do not give my money back. If you submit your claim keep an eye on it, so you don't miss it, is easy to forget about it because the bank do not call you.
Hope you also can have your money back!

I received a voucher/credit for the full amount I overpaid, based on the flight I booked. I'm happy with a voucher, since I use Hopper often.