Sage Accounting UKI

I'm struggling to accurately enter an expense in 'Other payments'. My receipt has inc and exc VAT amounts shown, so I've entered those and all is correct - until I get to the total paid, which is a penny out. Obviously Sage is not recording rounding…

I want to post a supplier refund for a cost which I posted in Sage One as type "other payment" i.e., there was no invoice from the supplier. It was a service I purchased online which I didn't fully use so the supplier has given me a part refund. The refund…