[CaveTech]

There are border towns where some workers do daily crossings. Without refund infrastructure in place it looks like this would add $250/day fee for all of these individuals

[WesolyKubeczek]

Is it per visa or per entry? Do the workers need to get a visa a day?

[tssva]

The fee is per visa and not per entry. Non-immigrant work visas usually are valid between 12 - 36 months depending upon the type of visa.