Many retailers use the trademark of a manufacturer to indicate that they sell these products. There is nothing wrong with that, as long as that use is honest and there is no reason for the manufacturer to oppose this use. That makes sense because a seller must be able to make it clear that it sells these products. To promote sales, sometimes domain name, social media accounts (Facebook etc) are claimed as well, often in combination with words like SHOP, STORE, etc. Is this allowed?

Marks & Spencer has bought the keyword Interflora with Google to promote its website. The website was an alternative to the Interflora ‘s services, because M & S’ floral department also delivers bouquets within a day. Interflora raised objections and after more than five years, the English court ruled this summer that M & S’ use of the keyword is not allowed.

Wim van den Berg repairs, maintains and sells only Porsches, for many years. Since 1996, he calls his company “Porsche Specialist van den Berg”. In 1999 he registers the domain name PORSCHE SPECIALIST.
In 2008, Porsche is involved for the first time. Porsche does not want that van den Berg exploits his company under the name “Porsche Specialist”. This name gives the impression that there is a special relationship with Porsche, while Van Den Berg not an official dealer.