Sundial Growers Inc. /zigman2/quotes/213489825/composite SNDL +0.29% said Wednesday that class-action lawsuits alleging it failed to disclose that a large amount of cannabis had been returned by a client because of contamination are without merit and said it would vigorously defend itself against them. The Canadian cannabis company said the suits stem from a "single online article, which erroneously described a since-resolved commercial dispute." The article, which was cited in the suits, was a report by MarketWatch in August that said Zenabis Global Inc. /zigman2/quotes/203772078/delayed CA:ZENA 0.00% returned a half-ton of Sundial cannabis because it contained visible mold, parts of rubber gloves and other non-cannabis material, citing people familiar with the matter. "All of our customer agreements include provisions to replace or return product under certain conditions," Sundial said in a statement. "The amount of product returned was a fraction of the 554 kilograms erroneously quoted in the article." Shares were not yet active in premarket trading but have fallen 43% in the past month, while the ETFMG Alternative Harvest ETF /zigman2/quotes/204332491/composite MJ +1.22% has lost 20% and the S&P 500 /zigman2/quotes/210599714/realtime SPX +1.34% has dipped by about 3%.