iPhone 11 Pro Max in Cabo

[CHROAK78]

My daughter is in Cabo this week with friends for spring break.  None of the Verizon iPhones are receiving any signal,,, the ones with ATT and T-Mobile are all working fine...  I've had her enable data roaming, change the voice/data from LTE to 3G and back, each time turning the phone off for 4-5 min and then back on.  Still getting the 4 dots for no signal...  Travel Pass is enabled on all our phones, VZW sold me a prorated $40 international plan instead of the $100 monthly fee, said it should work now... Still doesn't...  Anyone have successfully made this work,, or have suggestions on a fix?  Thanks