**No, that is almost certainly a scam (smishing/phishing).** Do not click the link.

Here are the red flags that give it away:

*   **The link is fake:** The real DHL domain is simply **dhl.com**. The scam uses **dhl.com-redelivery.eu** — a fake domain designed to trick your eye. Anything with extra words, hyphens, or a different ending (like `.eu`, `.info`, etc.) is not the official site.
*   **Urgency and threats:** "Pay within 24 hours or it will be returned" is a pressure tactic to make you panic and act without thinking. Real customs/delivery issues don't work this way.
*   **"Unpaid customs fee":** This is one of the most common parcel scams. Legitimate customs fees are usually handled through your postal service or an official customs portal, rarely via a random text link.
*   **Unsolicited message:** If you weren't actively tracking a package from DHL, be very suspicious.

### What you should do:
1.  **Do NOT click the link** or enter any payment or personal information.
2.  **Delete the message.**
3.  **Check independently:** If you are genuinely expecting a DHL parcel, go directly to the official DHL website or app by typing the address yourself, or use the tracking number you already have. You can also call DHL customer service directly.
4.  **Report it:** Forward the spam text to your mobile carrier (often by forwarding to **7726** in many countries) or report it to your national cybercrime/fraud reporting center.

If you already clicked the link, do not enter any information, and if you did enter payment details, contact your bank immediately.