 
         view.setNeedsUpdateConstraints()
         cardView.addSubview(cardFront!)
-
+        textBox.placeholder = getTextboxPlaceholder()
     }
     func keyboardWillShow(notification: Notification) {
         if let keyboardSize = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue {

    }

    open func textFieldShouldReturn(_ textField: UITextField) -> Bool {

        if editingLabel == cardNumberLabel, validateCardNumber() {
            self.prepareNameLabelForEdit()
        } else if editingLabel == nameLabel, validateCardholderName() {

        textBox.keyboardType = UIKeyboardType.numberPad
        textBox.becomeFirstResponder()
        textBox.text = expirationLabelEmpty ?  "" : expirationDateLabel!.text
        textBox.placeholder = getTextboxPlaceholder()
        self.trackStatus()
    }
    fileprivate func prepareCVVLabelForEdit() {
