The Canada Revenue Agency's (CRA's) telephone service standard:
"Our courteous and knowledgeable agents will be pleased to respond to your questions in the official language of your choice."
A. "Our goal is to respond to your call within 2 minutes."
B. "You may have difficulty reaching us during peak periods."
In other words, "B" nullifies "A".
Update: When I finally managed to not get a busy signal, and got through, the CRA answered the call within one minute. Pretty good!
I wanted to know if I had to list each medical expense in TurboTax, or if I could just enter a total in TurboTax and append the spreadsheet I had already created (and include the receipts). The person I talked to said I could do that. The reason I did it this way: you can only use medical receipts if they amount to 3% of income; much quicker to first list the amounts in a spreadsheet rather than laboriously entering into TurboTax. Once you have the spreadsheet set up, quicker to just add the data like date, who-for, and what-for in the spreadsheet.