I have completed my tax return and am waiting for CRA Netfile to open. BUT the program is giving me a CPP over payment of $ 4055.50. This is well beyond what I paid (3867.50 box 16 + 188 box 16a) or entered in the program. I tried another friend in the program and it did the same thing. I entered the data in an other program and it did not calculate this error. HELP/fix