I'm here to ensure you get the contact number correctly, Sharmaine.
Please know we're unable to input the contact number to protect users like you. Check out this article instead and scroll down to the Support Hours section: QuickBooks Online Support. You'll see the operating hours for different plans from there.
Visit this page to browse all articles related to QuickBooks: View all help for QBO.
Feel free to share your question or circumstance in this thread. I'll be here to address it. Take care.