One download too many (Kalium)?

We have one domain. We currently implemented “Kalium” (Version 13.2.1) and “Kalium | Creative Multipurpose WordPress & WooCommerce Theme” (Child-Theme). In our account I just downloaded “Kalium | Creative Multipurpose WordPress & WooCommerce Theme” (Regular Licence) twice, as recommended. Do we have one too many of those Themes/Downloads? Or are both required for our purposes? If not: How can I get rid of the superfluous download and get a refund? Thank you very much in advance.