The customer service is farmed out to a call center whose employees have no authorization to resolve an issue, they are not authorized to transfer your call to someone who can.
Items never ship. No resolution. Empty promises are made repeatedly with delivery dates until you just give up. Conflicting information presented in emails about delivery policies.
Take your money, give you a confirmation email that states the USPS is awaiting item and that's where it ends. I think this is mail fraud.
Buyer beware