“Cut off” in case of small inspection (oil service plus)

The smarty of the holding woman was allowed here in KR at the local Benz/Smart Association for inspection. What was then on the invoice, reminded me of the recently seen documentation in the TV/Youtube about ripping off of the contract workshops: In short: invoice amount 320 EUR gross for oil service plus AT MITCHETEM ÖL! (for comparison: With Jaguar 4 weeks before for the small with self-made oil with 266 EUR (incl. costs rented!) in the bag. For the “automatic resetting of the parking brake have then also been checked times even 5 AW. Nen 15% discount on wage costs has been calculated brav into the plus, instead in the deduction of the sum. (Good that will be quickly corrected) Is such incompetence or abscicke actually the new stand type with Smart? (or possibly only with some unfit local contractual partners? How are your experiences or how do you see this?