I subscribe but QuickBooks doesn’t work

Any specific issue? Try open your account on incognito/private browser.

https://quickbooks.grsm.io/Canada

Hi there and welcome to the QuickBooks family!

I love that you've taken the plunge and subscribed to our small-business accounting software. Once you get things up and running as expected I know you'll love how easy it is to take care of the bookkeeping for your business. First thing's first - let me help you get your QuickBooks working.

@Fiat Lux - ASIA has mentioned one option for troubleshooting, which is to try a private browsing window. I have a list of effective browser troubleshooting steps that I'd like you to try. When the images and files stored in our browser's cache aren't regularly cleared, they can impact the way programs like QuickBooks function. Clearing these files and attempting some additional troubleshooting steps is a great way to get back on track and determine the root of the problem. Please give these steps a try:

• Clear your browser cache if you're using a browser
• Clear the app cache if you're using the QuickBooks Online app for Windows or Mac
• Try a browser if you're using the app
• Try a private browser window
• Try another browser type
• Make sure you're using a supported browser and system
• Reset your Internet or try on another computer or device

Since you haven't provided much detail as to what's actually happening, I want to invite you to expand on why exactly QuickBooks isn't working. Are you unable to sign in? Are you experiencing difficulties with the features? Reply to this thread when you have a chance and let me know exactly what's happening so I can give you some more specific tips and tricks and help you get back to doing what you love. Just keep in mind that you cannot share sensitive account details here as this is a public forum and they'll be removed for your safety. 

If you'd prefer, you can also work through this with one of our fabulous customer success expert's in real-time over the phone, through chat, or on social media. They can do a screenshare with you in order to see exactly what you're seeing in order to get you up and running. Check out the ways you can contact us below:

Phone: Call us at 1-855-253-1536 from Monday to Friday between the hours of 9 AM and 8 PM EST.
Schedule a Callback or start a Chat: click (?)Help in the upper right > type and enter "Contact support" into the QB Assistant > click Contact Us > explain your situation > click Let's Talk > choose Get a callback or Start a Chat. 
Social Media: Facebook, Twitter, and Instagram.