--- alle bestellingen worden tijdens werktijd (8:30 - 17:00) persoonlijk afgehandeld ---

Rabt Thmyl Bwt Fry Fayr ✓

It looks like you're using a substitution cipher, specifically a letter substitution where each letter is replaced by a different letter a fixed number of positions down the alphabet.

However, I'm guessing that might not be the intended message. rabt thmyl bwt fry fayr

If I decode the message "rabt thmyl bwt fry fayr" using a simple Caesar cipher, I get: It looks like you're using a substitution cipher,