CIS - payment on account

SOLVED

I have two payments on account, which both have CIS deductions, but I can't seem to match the payment to the invoice, therefore the CIS amount is not going to the paid CIS account, is there anyway to do this, I am new to SAGE CIS, although I have worked with CIS for 10 years, I have been using a different system, the system I used, you could match payments on account. Any ideas, or do I have to credit the CIS amount and manually put it on the statement, if so, how do I do that??

 

Thanks in advance for any help