Marc Washing Machine Cleaner Ruined My Machine with Strong Odor

I recently purchased Marc washing machine cleaner, and now I'm regretting it deeply. After using the product just once, my washing machine developed a terrible, unbearable smell. For the past three days, I haven't been able to use my machine at all—the odor is so intense, I can't even approach it! It's unbelievable that Marc, supposedly a trusted brand, would sell such a product without adequate testing. I sincerely wish I'd checked the reviews earlier; clearly, I'm not alone in facing this issue. If this terrible smell doesn't disappear soon, I'm seriously considering legal action against Marc.