Evri complaint: Request for Compensation for Lost Parcel

I sent a parcel H051JA0022493761 to a customer through EVRI on the 2nd of September, and the parcel has been lost in transit. Unfortunately, I’ve had to refund my customer and apologize multiple times, which is extremely frustrating.
I’ve tried contacting EVRI for weeks, but there’s no way to reach a human being. The phone line 03308085456 only directs me to an automated response, saying they cannot find the tracking number and are still investigating. On the chat bot, I only receive a message stating they are still investigating and will be in touch soon. However, I haven’t received any updates, and it’s been more than a month now.
As a seller on eBay, this situation has caused me stress, lost revenue, and a dent in my reputation. EVRI’s lack of communication is unacceptable, and the inability to speak with an actual representative only adds to the frustration. I’m deeply disappointed with their service and hope they can improve their customer support process.
I do not have any idea how to get compensation for all refunded money as there is no any contact information.