**It's almost certainly a scam.** It's a common phishing text meant to steal your card details.

Red flags:
- **The link isn't DHL's.** The real site is dhl.com. This one is `dhl.com-redelivery.eu`, which is a different domain owned by the scammers. Anything after the last dot before the `/` is the actual site, here `com-redelivery.eu`.
- **Urgency:** "Pay within 24 hours or it will be returned" is meant to make you act without thinking.
- **Small fee:** A tiny amount like 1.99 EUR seems harmless, so people enter their card details. The goal is to capture your card number, not the fee.
- **Unexpected customs fee:** DHL doesn't usually send links asking for payment by text.

**What to do:**
- Don't click the link or reply.
- If you're expecting a parcel, check its status by going directly to the DHL website or app and entering your tracking number yourself.
- If you already entered card details, call your bank or card provider right away to freeze the card and dispute charges.
- Report the text to your mobile carrier by forwarding it to 7726 (in the UK) or your local equivalent, and delete it.