Thanks for the responses everyone. Well you won't believe this but I decided to email them again this afternoon using my existing email provider (yahoo.com) and received an automated response back within an hour.
I had originally contacted them twice using a new email account I had set up with GMX Mail and had heard nothing. So the problem must have been with GMX Mail even though the emails I "sent" to them were in the "sent folder". I had even successfully exchanged emails between these two accounts (to myself) but for some reason there must be an issue either sending emails to VFS or receiving emails from them using GMX Mail. I guess I made a mistake trusting this dodgy free email.