The client's site is an e-commerce site that requires users to register for an account in order to purchase products from it. As the subject title states, we've been encountering high levels of spam user submissions which are inundating the client's inbox. We've implemented reCaptcha V3 and Akismet, but the spam levels are still significant enough to be more than a mere nuisance.
We've tried region blocking on a different site, using Wordfence Pro, but that isn't effective enough to even think about proposing as a potential solution to the client.
Are there any other recommended approaches we can use to prevent spam from being submitted through the site's CRED forms?