The voicemails say to press buttons instead of reply, so they could be using phone spoofing. Here are the phone numbers and what happened when I tried calling them.
(866) 892-5385 (I could not call them)
(323) 522-5405 (I called them back and they were refund scammers)
(877) 594-8530 (They disconnected the call immediately after calling them)
(855) 562-3225 (Asked for a pin number)
(844) 580-7800 (Immediate disconnect)
Please be cautious calling the numbers.