How do I claim Polkadex?

Could you please explain to me in detail how one goes about claiming Polkadex? Is there a specific process or set of steps that I need to follow? Perhaps you could also clarify any prerequisites or conditions that may be required in order to successfully claim Polkadex. Additionally, could you provide any insights or tips on what to expect during the claiming process, and any potential challenges or obstacles that I might encounter? Thank you in advance for your help.