How do I contact support? My registered tax number is considered invalid, website won't accept it.

[Shawn0707]

I am having trouble entering my tax number in the taxes and duties section of the settings. It says it is invalid though i know that it is valid. I have confirmed that I entered the correct information. I have cleared my browser cookie cache. I have tried an alternate browser. Nothing has helped. I need help, or I cannot use shopify for my business.

[Shawn0707]

I solved my own problem. I was the problem. I thought my business number was a tax number. Turns out I have to register for a GST account with the CRA.