Cppd, ltd and taxes

Hello,

I am on Ltd and was approved cppd-d. I have dealt with the tax issue and the large cppd backpayment successfully.

Now my issue is my income looks higher than it is.

My ltd says 4,100

-1000 less cpp disability

-333 income tax

So my t4a from Canadalife shows $44,000

My t4 from cpp shows 12,000

My income.shows 56,000 but it’s really 44,000

This amount also affects my child support.

Can I ask canadalife to show on the t4a for next year my income as deducted?

Also do I have to pay taxes on 12k I don’t even see