Add Comment Question: I never recieved retroactive payment becausei owed the child tax one overpayment they had released to me that they shouldnt of.I was told at the time that i had to oay that child tax overpay.ent before i would eeceive my retroactive cpp payment..how do i get the 40,000.00 plus dollars the canadian government has owed me this whole time.How can i pay that bill and get my funds released that I never did ever get? Answer: You will unfortunately need to speak directly with Service Canada to determine any options regarding the overpayment and retroactive benefits. Your Comment * Your Email * Your Name * Your City Note, your name, city and email is not displayed on the website. It is used to notify you that we have approved your comment.