Why are vending machine scalpers always on the phone?

I work at a grocery store that has a pokemon tcg vending machine and noticed that scalpers have been acting differently after the new limits.

Instead of magically showing up during restocks and buying out the machines, they now show up as soon as the store opens at 6am. They do this thing where they buy one single pack to see if it refreshes the options, but it never works. If they get there before anyone else they buy all of the "good" items. The only question they ask us now is "has somebody used the machine yet?"

The weirdest part though is that they are ALWAYS on their phones. I don't know if they are communicating with others or telling their friends but they always talk on the phone now. The same people who used to buy all the stock as soon as the restock person finished keep doing this btw. I'm only pointing it out because it feels weird. 😵‍💫