Welcome to the board!
I'm from the US so don't know what CPP is...
I applied for SSI here but my husbn makes too much also. Applied for SSDI Feb 2011. Been turned down twice. I'm now in the 3rd phase waiting to see a judge. Normally people get it at this phase but trying not to get my hopes up. Keep telling myself that if I get turned down I'll just keep applying. When you can't work but need the $ all we an do is keep trying... Are you able to keep applying for CPP?
I hired a company to do the paper work for me. I will also have someone to go in front of the judge with me to push my case.
Hopefully you can get an attorney or something where they don't get paid unless you do!