Got asked to call a company I didn’t apply for. What should I do?

So I applied to three jobs the other day and am patiently waiting for any of those three companies to respond. Well today another company asked me to “discuss my qualifications further” after reviewing my resume online. I didn’t apply to this company and am not really interested in their job title opening. How do I respond to this email? Is ignoring it the right thing to do or how do I go about this? Thanks.

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