my sim card last week it worked for one day then it stopped working can you please check out and see

Try one by one those 3 solutions who solve a lot of problem
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* Restart your phone
* Try enabling air plane mode for 30 seconds then disable
* Take out your SIM and insert it again
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if you still have the problem contact the support

CHAT
Go to this page https://fizz.ca/en/contact-us, if you are not connect login
The business cours: every day from 8 a.m. to 9 p.m. (EST).
Wait 5 seconds for the bubble icon to appear at the bottom right of the browser and click on the icon to chat with support. Try a different browser if you have issues getting the bubble to appear.
If the chat bubble does not appear, this means that the number of sessions waiting for our answers surpasses our processing capacity. If that happens, send us a private message via Facebook Messenger or Twitter.

FACEBOOK
Your can also send a message via facebook messanger https://facebook.com/fizzca and click send a message (this is a bit slower)

CONTACT FORM
You can also fill a contact form from your account Once logged in, from the account panel go to My Profile → Contact Form (the subject are limited) and fill out the form and someone will email you back.