VVD Warranty Perfect Car Plus Ribbed belt

I have the above guarantee. Now, as a result of worn or dirty pulleys of the velcro belts, it has slipped down and has become blurred in the engine compartment. Repair made in faith the guarantee takes over this. now the friendly one tells me that he must first see if doie guarantee takes over this. According to the guarantee condition maintenance work is not insured. Here the extract from the conditions: The following positions and components are not covered by the guarantee according to § 2, I.–III. ast and therefore excluded: maintenance (parts and service) and general wear and tear as well as all parts which are to be exchanged within the scope of maintenance and maintenance work prescribed by the manufacturer of the vehicle (e.g. clutch coverings, air filters, wedge, flat and tooth belts). No warranty claim exists for damage to components which, due to age or useful life or mileage, would have the manufacturer’s maintenance and maintenance guidelines in any case This is especially true when such components are repaired in the course of repairing other defective components. Now I understand that this was neither a maintenance work nor a maintenance work. How do you see this?????????????????????????????????????????????????????????????????