Almost certainly **fake/phishing**. Don’t click the link or pay.

Red flags:
- The domain **`dhl.com-redelivery.eu`** is not an official DHL domain. It’s designed to look like `dhl.com`, but the real domain is `com-redelivery.eu`.
- Urgency: “Pay within 24 hours or returned” is a common scam tactic.
- Tiny customs fee of €1.99 is bait to get card details.
- Generic message with no real tracking number or recipient details.

What to do:
- Don’t open the link.
- Check any expected parcel directly via the **official DHL app/website** or a tracking number you already have.
- Report/forward the SMS as phishing if your carrier allows it, then delete it.
- If you already entered payment details, contact your bank/card issuer immediately.

So: treat it as a scam unless you independently verify it through DHL’s official channels.