I have been using Affinity dashboard for a while now and have done a few VAT returns for my company with no problem at all, over the last 2 days I have not been able to get a VAT return to go through, I keep getting a message about a duplicate return, when I check with HMRC they have not received anything and when I check on the affinity it tells me nothing has been uploaded to HMRC, is there a problem with the system at the moment?