That apparently does not match your expectations. Totally OK. I cannot see any untrustworthiness in it.
Maybe it is not untrustworthy but what it definitely is; an implausible and contradictory offer. It’s like if I advertise "500 grams of German strawberries" for 2.49 per container in the grocery store and then add a note underneath "Surcharge 50 cents due to German origin". I don’t find that trustworthy.
The wording “Der Typ” to describe the provider, on the other hand, I find disrespectful.
“Typ” is not meant in a derogatory way. People also say: "Cool guy" when they like someone. It just isn’t a formal designation like "the providing craftsman" (in this case, by the way, not a specialist craftsman but a all-rounder who paints, installs parquet, tiles, drywall......).