Hello @fatimakaz,

Thanks for sharing your question with the Klaviyo Community!

Renting or buying a list to use within Klaviyo is strongly discouraged as it does violates Klaviyo’s Acceptable Use Policy. This is because these users whose list you are buying or renting has not explicitly shared consent to be receive marketing material from your brand. Using a rented or purchased list is subject to termination of your Klaviyo account. To learn more about list compliance, I would suggest reviewing the About Compliant Lists help article Klaviyo offers. 

@wei.he also has some highly insightful Community post surrounding this subject which I’ve included below:

Thanks for being a member of the Klaviyo Community!

David