Complaint: No response on claim

I have logged a claim in February 2021. After a few emails, finally had a consultant who assisted me. Completed the forms that was required in order for them to make payment to me and returned them on 6 April 2021. No acknowledgement was received. I sent follow up emails on 20 April 2021 and 26 April 2021. On the last email, received an "Out of Office reply" informing to I contact another person during her leave. On the same day, I forwarded all the emails to the person stated on the "out of office" notification, and had no response. I sent a follow up email to this person again on 26 April 2021, threatening to escalate this matter to their management or Hello Peter and received a response saying that the matter was now escalated to an advisor and he/she will be in contact with me. On 4 May 2021, I still have had no phone call or email from the advisor and sent an email and attached all the correspondence. To date, 7 May 2021, I have had no response. I am sure you can understand my frustration in this matter!!