Are there workflows still being triggered on our previous account?? Help needed!

We have the free plan for Klaviyo which is linked to our Shopify stores. we previously had the paid version but this has expired as we moved to a different platform. I’ve new to the team and have never used Klaviyo and not sure who managed it prior to me - but we've had a few sporadic emails that seem to be triggered from within Klaviyo.

I received an email that is outdated with social media links and a customer also mentioned that they received a newsletter discount offer. I’ve searched within the dashboard, flow and campaigns and I cant see how to access where these emails are being triggered from? I’ve exhausted what I think is all the options to try and find them.

Due to using a free package we no longer have access to live chat or email support so I’m not sure where else to try? But it is a little concerning that there are unprompted, uncontrolled and unfindable emails being sent out 🤷‍♀️

Thanks in advance for any help!