A Havelock North businesswoman claims a charitable group is causing "confusion" by using the same name as her company, with the same hot pink colour, to promote its op shops.
Sonya Blackwell said she had run her home presentation and cleaning business, Redefine, for 18 years.
When signs sprang up in local op shops advertising an event that shared the name and hot-pink coloured font of her branding, she feared it would undermine her business.
Run by Presbyterian Support East Coast, the event, called Redefine, is a competition for people who have creatively altered op shop items.
The signs could be seen in the group's head office just a couple of hundred metres from Ms Blackwell's house.