While loop not breaking?? C++

I'm trying to construct a simple dice game in C++. I do not understand why it's not breaking out of the while loop.

You are supposed to ONLY be able to bet 100, 300, or 500€.

Even if I enter my bet "100-300-500" which is supposed to be correct. It still loops and says it's an invalid bet. Why doesn't it progress to the if statement when I have if ((bet1 == 100) || (bet1 ==300) || (bet1==500))

I've tried putting the if statement before the while loop and all sorts of things. I can't get it to work.

cout << "Please place a bet. 100, 300, 500kr" << endl;
cin >> bet1;

while ((bet1 <= 99) || (bet1 >= 101) || (bet1 <= 299) || (bet1 >= 301) || (bet1 <= 499) || (bet1 >= 501)) {
    cout << "Please place a valid bet" << endl;
    cin >> bet1;
}
if ((bet1 == 100) || (bet1 ==300) || (bet1==500)) {
    cout << "You have deposited " << " " << bet1 << "" << "And you now have: "<< saldo - bet1 << " " << "Remaining on your account." << endl;
}