No resolution to a ticket/escalation

Back in May 2023 I requested for a service upgrade, which was successfully upgraded and effective date was 12 June 2023. Ever since the upgrade I haven’t been receiving any statements, even after numerous contacts on their chat support ***. Agents have been escalating the issue to their accounts department but still no resolution.

I am disgruntled by their bad customer since and not being able to email a mere statement but payment is collected from my bank every month.

I need my invoices/statements from June to date!