UPC question – Canada or US?

Hi everyone. We are a Canadian company that sells a number of ASINs on Amazon.com.

When we first started, we got our first 10 UPC codes from GS1 Canada. However, they are so expensive that we decided to get our next 10 from GS1 USA (much cheaper).

So now we have accounts with GS1 Canada (using our Canadian company address) and with GS1 USA (using our US mailing address).

We have several products on Amazon with the Canadian UPC codes, and several others with the US UPC codes.

Is this potentially going to be a problem for us in some way? We’ve never had a problem so far, but it’s making me a little nervous.