$payment = new Payment();
$payment
    ->setPrice(Money::ofInt(50))
    ->setCurrency(CurrencyCode::CZK)
    ->setLabel('Test item')
    ->setReferenceId('test001')
    ->setEmail('foo@bar.tld')
    ->addMethod(PaymentMethodCode::ALL)
    ->setTest(false)
    ->setFullName('Jan Novák') // nové parametry ↓
    ->setCategory(CategoryCode::PHYSICAL_GOODS_ONLY)
    ->setDelivery(DeliveryCode::HOME_DELIVERY);