Another month another problem

I've been trying to send through my claims as I normally do but this time my emails don't seem to be reaching discovery I'm not getting an automated response I've now sent it through 5 times with no reply. I phoned and was told to submit on line which I did. I have not got an email to say they it's been received or what's going on once again. And once again I don't no who to call therefore I am forced to complain here. It's another month and another problem.