POOR PRODUCT QUALITY

I have purchased two packets 1kg pea dhall from the local mall. I noticed after cooking this item for more than 3 hours on both a normal stove and gas stove it's still unable to boil properly I have tried everything but seems like the quality of the item is very poor I would like an immediate response as to why would you guy's manufacture a product of such low standards seeing as we as customers are paying the retail price. I have lodged a complaint on Facebook and also sent an email to no avail there is no response or any form of help.