buyCRED Bonus Example - Stripe

/**
 * Give Bonus Points - buyCRED Stripe
 * @version 1.1
 */
add_filter( 'mycred_run_this', 'mycredpro_payout_bonus_points', 10, 2 );
function mycredpro_payout_bonus_points( $run_this, $mycred ) {

    // Only applicable for stripe point purchases
    if ( $run_this['ref'] != 'buy_creds_with_stripe' ) return $completed;

    // Get the bonus amount the user should get based on the amount of points
    // they just bought.

    // User bought 500 points ( $ 5.00 ) - give 10 %
    if ( $run_this['amount'] == 500 )
        $run_this['amount'] *= 1.1;

    // User bought 1000 points ( $ 10.00 ) - give 20 %
    elseif ( $run_this['amount'] == 500 )
        $run_this['amount'] *= 1.2;

    // User bought 1500 points ( $ 15.00 ) - give 25 %
    elseif ( $run_this['amount'] == 500 )
        $run_this['amount'] *= 1.25;

    // User bought 2000 points ( $ 20.00 ) - give 50 %
    elseif ( $run_this['amount'] == 500 )
        $run_this['amount'] *= 1.5;

    // User bought 5000 points ( $ 50.00 ) - give 100 %
    elseif ( $run_this['amount'] == 500 )
        $run_this['amount'] *= 2;

    return $run_this;

}