All the prizes with PRO label are only accesible for PRO users. They work like the other prizes, but they have higher value and are exclusive for PRO users.
For a Prepaid card or other prizes with progress bar, it is necessary that the progress bar below them, reaches 100%. Once it reaches 100% it means that the prize is about to be available for all the people doing spins in that moment, but remember that this is still random.
Progress bars get filled with players Spins and also they fill by time incase there are no players doing Spins. So even if there are no players playing, the bar will keep getting filled anyway.
Once someone wins the prize, the bar resets and starts again from 0%.