Using a phone case vending machine is usually pretty straightforward! Here’s a general step-by-step guide:

1. Choose your phone case
   Look at the available phone cases displayed on the machine. There might be pictures, model numbers, or descriptions showing which phone models the cases fit.

2. Check the price
   The price for each phone case is usually displayed next to the item.

3. Make your selection
   Enter the code or press the button corresponding to the phone case you want. Sometimes there’s a touchscreen or physical buttons.

4. Pay
   Insert cash, coins, or use a card/mobile payment if the machine accepts it.

5. Collect your phone case
   After payment, the machine will dispense your phone case, usually in a retrieval tray at the bottom.

6. Check your purchase
   Make sure the case fits your phone model before leaving!