I currently am having a conversation with a company that I have purchased window blinds from, And I cannot find my previous conversation. It may have been Insta

I currently am having a conversation with a company that I have purchased window blinds from, And I cannot find my previous conversation. It may have been Instagram or WhatsApp or email I can’t find any mention of the company beyond certain date. It’s probably Some other app, but I don’t know what. My understanding is that Windows phone had a universal message search which would mean I’m not in this position.