Complaint calls the incident "a failure" and noted that it comes "on the heels of the public relations debacle."
Sales slowdown comes as some Canadian Tim Hortons franchisees fight against what they say is their corporate parent's mismanagement of the coffee-and-doughnut chain.
Protests at restaurants across the country will include a Tim Hortons on Ottawa's Montreal Road.
Rallies came a day after a social media campaign urged patrons to take part in "No Timmies Tuesday" on Jan. 9 and instead visit independent coffee shops.
Ontario premier accuses Tim Hortons' founders' children of bullying employees over minimum wage hike
Owners of two franchises say the reduction in benefits is aimed at offsetting the $2.40 hourly rate jump.
To offset minimum wage hike, several Tim Hortons franchises owned by children of chain's co-founder reduce employee benefits
Nationally, Bank of Canada estimates 60,000 jobs will be lost due to pay increases across the country
Same-store sales fall for second consecutive quarter amid franchisee dispute.
A Tim Hortons franchisee is seeking a class-action lawsuit against parent company Restaurant Brands International (TSX:QSR), alleging it improperly used money from a national advertising
The CEO of the parent company of Tim Hortons is brushing off skepticism that the British will embrace its double-doubles and Timbits as it readies to open its first location in the United Kingdom n
The owner of Tim Hortons and Burger King is reporting flat sales at its established locations in the first quarter but a nine per cent increase in revenue, which was above analyst estimates.