No reply from insurance

I filed a lost phone claim with Admin Plus and they responded as required. They even made me aware of the excess fee that I had to pay. Once paid they did not respond to my email address. I emailed them twice on the 1st of April (providing proof of payment) and on the 9th of April (asking if they received my proof of payment). But I did not receive any reply from them. I have been calling them everyday since the 6th of April 2021 but they keep me on hold then hang up on me while waiting for a consultant. This is frustrating as I am not hearing from them at all. On the last email they told me that they have procured a device for me and that I will receive it once payment is made but now that payment was made they go silent on me.

The email address I used to submit my proof of payment is ***