Hi all,
I have the same pickle, and spent the whole day to wrap my head around it. I finally submitted a bug report for it: EC Reverse Charges for services
This thread here (which I didn’t find while searching for VAT Reports) confirms that Quickfile wrongly aggregates service sales to EU customers into Box 8 instead of Box 6 (where it belongs). Therefore a manual adjustment each quarter is required (lowering Box 8 value and raising Box 6 value but he same amount).
However, the EC Sales List requires reporting both supply of goods and supply of services to HMRC!
If it’s true what is described here, i.e. electronic EC Sales List generation and submission available only when supplies of goods is reported, then that is a serious drawback!