1 TON of air conditioning requires 400 cubic feet per minute of air movement in the average HVAC system.
So in order to have a quick Fitbit contact customer support, you just need to punch these numbers, 877-623-4997 on your XOLO (X900) phone. So it means you should not be facing any problem in speaking to Fitbit's customer service representatives.
General Number (800) 255-0792 . Consumer Service. Phone: (800) 637-2422 Fax: (800) 237-6526. Customer Service. Phone: (800) 523-0233 Fax: (800) 523-0688. Sales. Phone: (800) 577-8787 Fax: (800) 523-0233. Billing. Phone: (800) 294-5566 Fax: (800) 998-4747