Why isnt sql adding to table but returning true?

Question

In the function below after running the function its inserting into user table but wont insert into the usage table

function Signup($username, $password, $member) {
    global $dbs;
    try {
        // Generate API Key using JWT
        require_once 'JWT_class.php';
        $token = array();
        $token['id'] = uniqid(); // Generating a unique ID for API Key
        $apiKey = JWT::encode($token, 'secret_server_key');

        // Calculate Premium date based on member type
        $premiumDate = ($member == 1) ? date('Y-m-d', strtotime('+30 days')) : date('Y-m-d');

        $query = "INSERT INTO user (username, password, memberType, APIKey) VALUES (:username, :password, :memberType, :APIKey)";
        $statement = $dbs->prepare($query);
        $statement->bindValue(":username", $username);
        $statement->bindValue(":password", $password);
        $statement->bindValue(":memberType", $member);
        $statement->bindValue(":APIKey", $apiKey); // Insert API Key value
        $statement->execute();

        // Insert usage data into usage table
        $usageQuery = "INSERT INTO usage (APIKey, todaysUsage, UsageDate, PremiumDate) VALUES (:APIKey, 0, CURDATE(), :premiumDate)";
        $usageStatement = $dbs->prepare($usageQuery);
        $usageStatement->bindValue(":APIKey", $apiKey);
        $usageStatement->bindValue(":premiumDate", $premiumDate);
        $usageStatement->execute();



        $rowCount = $statement->rowCount();
        if ($rowCount < 0) {
            return true;
        } else {
            return false;
        }
    } catch (PDOException $ex) {
        // Handle the error gracefully, log, or display an appropriate message
        header("Location:../view/error.php?msg=" . $ex->getMessage());
    }
}

The database code is

CREATE TABLE `usage` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `APIKey` varchar(999) NOT NULL,
  `todaysUsage` int(11) NOT NULL,
  `UsageDate` date NOT NULL,
  `PremiumDate` date NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `APIKey_UNIQUE` (`APIKey`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

I tried debugging by adding the code below to the end but am not getting any visible output,

$usageStatement->execute();
$usageErrorInfo = $usageStatement->errorInfo();
if ($usageErrorInfo[0] !== '00000') {
    print_r($usageErrorInfo); // Debugging output
}