Local councilor Ruth Wilkinson confirms the council has already received eight complaints about the "unsightly" dish situated on the side of the Tesco Express in London Road.
The dish has been in place since the store first opened in July this year.
The store's deputy manager is believed to be discussing the size of the dish with the National Lottery to try and establish if it needs to so large.
Tesco spokesperson said: "We’ve listened to community feedback and are working to resolve concerns."
