Done some testing using some of ur ideas and i still cant get at the VCFs.
I created a text file on my laptop and sent this to the S5. This appeared in my download folder. Not exactly what others get but its a damn good start! I decided to see if i could delete it through the recieved files option. It still only shows open. I went back to download folder and deleted the file. When i returned to recieved files, the text file came up as 'not found' and was removed from the list of files. Yet my VCF transfers remain suggesting they are still somewhere on the phone.
Im emailing Samsung again and telling them to provide a delete option on the recieved files bit or i will root my phone and find the offending files myself. They will then be held responsible for any issues that arise.
If anyone has anymore ideas im all ears
Sent from my SM-G900F