I emailed them demanding a refund.
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Is there a better way?
Yes, on the 2nd of Jan when the post office opens, I will send them a registered letter stating I want to know how they are going to solve the problem they are causing. It's called a notice of default and it's the first step one can take to start a conversation with HF to come to some kind of agreement. You can later escalete it to a lawyer if no comprimise can be found.
what is the address to send them a registered letter from outside of US? thank you!