; and (B) acknowledges the extent of the borrower’s delayed eligibility for old-age insurance benefits under title II of the Social Security Act (as amended by the Student Security Act of 2017) as a result of receiving such credits. (3) Combination with other forgiveness programs Unless otherwise provided by law, a qualified borrower may combine forgiveness under this subsection with other forgiveness programs under this Act, except in no case shall the total amount of forgiveness received by a borrower under all such programs exceed the amount of Federal student loans owed by such borrower. (4) Definitions In this section: (A) Default The term default has the meaning given the term in section 435(l). (B) Eligible Federal Direct loan The term eligible Federal Direct loan means any loan made under this part, including any such loan on which the borrower has defaulted. (C) Qualified borrower The term qualified borrower means the borrower of an eligible Federal direct loan who is not entitled to collect old-age insurance benefits under title II of the Social Security Act as of the date of the agreement under paragraph (2), including a borrower who is a defaulted borrower. (D) Student loan forgiveness credit The term student loan forgiveness credit means the cancellation of the obligation of a qualified borrower to repay $550 in eligible Federal Direct loans in exchange for delayed eligibility for old-age insurance benefits as specified in title II of the Social Security Act (as amended by the Student Security Act of 2017). . 3. Delayed eligibility for old-age insurance benefits (a) Retirement age