It sounds like you have entered more than one slip. Return to the T4A(P) to see if you have entered more than one slip. It is also a common mistake to enter the T4A(P) on the T4A slip or maybe you have entered both by mistake. Walk thru the Income section again to see what slips have been entered and if the amounts on each slip are correct and entered on right slip (don't get confused between T4A and T4A(P) or T4A(OAS))