The caller with the number +18083361196 is likely involved in a phishing scam, where they attempt to trick individuals into providing sensitive information or paying fake invoices. The mention of an email with an invoice attachment and a request to call for a "refund" is a common tactic used by scammers to create a sense of urgency and legitimacy. The fact that the email claims to be from GeekSquad, a well-known tech support company, suggests that the scammers are trying to impersonate a trusted brand to gain the victim's trust.
I received an email supposedly from GeekSquad with an invoice and instructions to call this number for a refund.