Question: Vess soda is sold through what Canadian dollar store headquartered in Montreal?

Context paragraphs:
Dollarama: Dollarama Inc. is a Canadian dollar store retail chain headquartered in Montreal.  Since 2009, it has been Canada's largest retailer of items for four dollars or less.  Dollarama has over 1000 stores and has a presence in every province of Canada; Ontario has the most stores.

Prince Edward Island dollar: The Prince Edward Island dollar was a unit of currency used in Prince Edward Island.  The dollar replaced the Prince Edward Island pound in 1872 at a rate of 1 pound = 4.866 dollars (equivalent to the Canadian dollar).  The dollar was subdivided into 100 "cents".

Your Dollar Store with More: Your Dollar Store with More Inc is a Canadian chain of dollar stores based in Kelowna, British Columbia.

Charles Leiper Grigg: Charles Leiper Grigg (May 11, 1868 – April 16, 1940) was the inventor of "Bib-Label Lithiated Lemon-Lime" soda, better known by its later name, 7 Up.  He invented the drink in October 1929.  Grigg became acquainted with the carbonated beverage business after moving to St. Louis, Missouri.  Prior to inventing 7 Up, Grigg had created an orange soft drink named "Whistle" for the Vess Soda Company.  It is still made and sold in St. Louis.

Toronto dollar: The Toronto dollar, founded in December 1998, is a paper local currency used in Toronto, Ontario and backed by the Canadian dollar.  The Family Life Foundation of Willowdale—a registered Canadian charity—then chaired by the Rev. Lindsay G. King (Minister of Willowdale United Church) was one of the sponsors of the Toronto dollar system.  The Rev. King was present at the founding of the TD, at which the Toronto Mayor, Mel Lastman, bought the first Toronto dollar.

Nova Scotian dollar: The dollar was the currency of Nova Scotia between 1860 and 1871.  It replaced the Nova Scotian pound at a rate of 5 dollars = 1 pound (1 dollar = 4 shillings) and was consequently worth less than the Canadian dollar (worth 4s 1.3d).  The Nova Scotian dollar was replaced by the Canadian dollar at a rate of 73 Canadian cents = 75 Nova Scotian cents, thus maintaining the difference between the two currencies established in 1860.

New Brunswick dollar: The dollar was the currency of New Brunswick between 1860 and 1867.  It replaced the pound at a rate of 4 dollars = 1 pound (5 shillings = 1 dollar) and was equal to the Canadian dollar.  The New Brunswick dollar was replaced by the Canadian dollar at par when New Brunswick entered the Canadian Confederation.

Vess: Vess Soda is a brand of soft drink manufactured and distributed primarily in the St. Louis, Missouri, USA, metropolitan area and recently in Canada through Dollarama and Giant Tiger locations.  The company was founded in 1916.  At the height of its popularity, Vess had bottling plants in several locations including Asheville, Lafayette, Anderson and Cincinnati.  It is now owned by Cott Beverages.

Great Canadian Dollar Store: Great Canadian Dollar Store Ltd. (GCDS) is a privately owned Canadian franchise dollar store.  The discount merchandiser was founded in 1993 by Bud and Vivian Walker, with the set-up of a head office in Victoria, British Columbia and opening of the first BC store in Kamloops.  Over 100 franchised stores are located across Canada, including the Yukon, British Columbia, Alberta, Manitoba, Ontario, Nova Scotia, New Brunswick, Prince Edward Island and Newfoundland.  In 2015 Great Canadian Dollar Store was purchased by Kevin & Jane Kane of Quispamsis, NB.

Dollar store (Cuba): In Cuba between 1993 and 2004, a dollar store was a government-owned shop that sold goods solely in exchange for hard currency, originally mainly to foreigners, in the same way as a Friendship store in the People's Republic of China or an Intershop in the German Democratic Republic.

Supporting paragraphs: Vess Dollarama
Answer: Dollarama