@Ciklamini Marek (PS/EDI1-Bj BudWise)
Sorry to hear that are having trouble requesting a quota increase for Azure Container Instances. Please navigate to the Quotas page . Change the Provider to Azure Container Instances. Filter to the region you want to increase quotea and click the Create a new support request button on the right side.
Hope this helps! Let me know if you are still having issues creating a request.
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