when there is someone available, chat is an option. Phone or Twitter works well, too.
https://myhelp.fitbit.com/s/support?language=en_US
Support is limited by the number of representatives available at a given time and the hours of operation. Chat lines are open when they have live help.
USA: call (877) 623-4997
UK: call 0800 069 8505
INDIA: call 000 800 050 1057
IRELAND: call 01 691 7502 (country prefix: +353)
Other contact options:
USA: click
Canada: click for options
Did you deal with them through messages or did you have to call to get your refund? They contacted me through email and I responded twice to them yesterday, but so far haven’t heard anything today.