Looking for ways to get more value from deposits on case opening sites

I've been looking into strategies to get more value from deposits on case opening sites. I noticed some information about skin.club, a popular CS2 case opening platform. It seems that using promo codes is a common way to achieve this, often offering a percentage bonus on deposits, which can effectively reduce costs or provide extra in-game currency. The site also reportedly employs a level system and offers daily free cases, suggesting that active engagement might unlock further benefits over time. Beyond promo codes and daily cases, are there other general approaches to maximizing deposit value on these kinds of platforms?