Hi there, I recently travelled to Canada via the US and over the land border at Buffalo due to my eta still pending, I had little choice but to book a last minute flight and do it that way, whilst I was nervous about crossing there was no reason to be and I was waved through in under 30 seconds, however since returning back to the UK last week my ETA has come back as rejected and I am hoping to return to Toronto with my Canadian girlfriend in November this year, would I be right in saying that crossing via Buffalo by car is now a lot more complicated because of the rejected application or will it not flag up?

My other consideration was too apply for a new passport as my current one runs out next year anyway and hopefully then miss any potential bumps in the road so to speak or will my new passport still flag on the system at border control? Any advice would be greatly appreciated.