Not responding to claims

I have sent 3 emails to Momentum following up on my claim but have had no feedback just automated responses.

First submission was on Tue 2018-02-06 10:18 AM to **********

A week late i tried following up again Tue 2018-02-13 11:35 AM

Then i tried following up by sending an email to **********

The reference number for your enquiry is ********** 34

This was for in hospital Physiothe****** which i paid. It is now a month later and i still haven't received any feedback or email to confirm.