Yes Curmudgeon, I agree.
I just checked the T4A (P) slip again more carefully and now saw boxes 14 to 19 at the right under SIN and Effective date, not aross the top where I expected them to be (like on the T4A (OAS) slip..
In any case, Box 14 shows the same amount as box 20 and boxes15 to 19 are all blank. I should not have mentioned what I thought was an issue regarding box 20,it's just a layout of the T4A (P) slip that I found confusing.
I triple-checked everything again this afternoon, including all the suggestions here, and I still get the $5541 twice in the pdf copy.
I tried submitting a revised return via NETfile but the system won't let me.
Tells me I have to send in a paper copy.
Since CRA has the correct $5541 amount for the CPPpayments, I assume they will just correct that when they process my returns.
I called CRA today, after waiting about 45 minutes (via callback) finally got to talk to an agent, went through the long process of verifying my identity, explained the problem, she put me on hold and five minutes later the system switched me to the feedback menu.
I'm not sure I want to go through that again unless I absolutely have to.