When a receipt was done but posted on the wrong debtor, a ZERO receipt can be done to correct this allocation.

Please see example:

An incorrect R300 receipt was done on Mr Wrong's (DEB68) account, and should have been posted to Mr Correct's account.

STEP1: 

Do a normal Medical aid/patient receipt (Depends on who paid the account) but leave the amount on ZERO.

STEP2:

• Type in the wrong debtor's account number first, and the amount that was incorrectly allocated with a negative. 
• Click on Tab
• Allocate that same negative amount on the item or invoice line as well
• Click on Done (F2)

STEP3:

• Type in the correct debtor's account number, and the amount that should have been allocated to that debtor
• Allocate that same amount on the item or invoice line as well
• Click on Done (F2)

Step4:

Your next receipt line should now balance to a ZERO and you can post the transaction.