You mean subsection 188(3) of the National Credit Code - not the NCCP (National Consumer Credit Protection Act). The Code is the schedule to the Act.
The provisions of section 188 don't work the way it appears you intend. The provision is about who has to comply with the obligations of the Code as the credit provider - the original lender or (for example) Credit Corp as the company the credit contract is assigned to.
Subsection 188(3) provides that if the original lender continues to receive payments, then the original lender has to comply with the Code. But, 'receives' is deceptive. You can't force the original lender to receive the money, it has to be their conscious decision to keep it. If they refund, reject or forward the funds on to Credit Corp then they aren't receiving it.
In any case, subsection 188(3) has no bearing on the proof of ownership of the debt.