Wavve partners with a service called Tapfiliate to provide affiliate accounts and affiliate tracking. Tapfiliate does allow Affiliates to customize their affiliate links.
For instructions to customize your affiliate link, take a look at this article: https://support.tapfiliate.com/en/articles/1444384-how-affiliates-can-customize-their-links
Please understand that only Affiliates are able to customize their affiliate links. Wavve staff cannot customize affiliate links for you.