testNG, Java: How to combine a few Data Providers in one test?

in the provided test I need to read the data from the cell in Excel and it works.
I would also like to add the functionality to store the price of the product in another cell in the Excel.
I’ve splited that into 2 data providers ("readData" and "writeData"), however I am unable to add the second data provider to the test or I don’t how to do that.

Could you please advise how to combine both of them in 1 test?
Thank you in advance.

TEST:

public class StandardProductPricingTest{

@BeforeTest
public void setUp() {
    Page.initConfigurationAndLogin();
}

@Test(dataProviderClass = Utilities.class,dataProvider = "readData")
public void standardProductPricingTest(String product) throws InterruptedException, IOException {
    HomePageActions home = new HomePageActions();
    GalleryPageActions galleryPage = new GalleryPageActions();
    PDPageActions pdPage = new PDPageActions();

    home.searchProduct(product);
    galleryPage.clickOnThePicture();
    String price = pdPage.readPrice();
    }
}

DATA PROVIDER:

public class Utilities extends Page {

@DataProvider(name = "readData")
public Object[] getData() {


    String data = excel.ReadCellData(1, 0);


    return new Object[] {data};

}
@DataProvider(name="writeData")
public Object[] writeData(String price){

    String sheetName = "standardproduct";
    String data = excel.getCellData(sheetName, 0, 2);
    System.out.println(data);

    int rowCount = excel.getRowCount(sheetName);
    System.out.println("total rows: " + rowCount);

    excel.setCellData(sheetName, "PDP Price", 2, price);

    return new Object[] {price};
}

}