If going elsewhere is an inconvenience, I would ask for an appointment to speak with the TSC manager and see if they can come up with what is causing this to happen.
I agree totally. I think it's your store. For years I purchased crumble layer feed (Dumor) from TSC and never had a single issue. I do now order different stuff from Chewy just for my own personal reasons and no problems with theirs ever either.
I don't know that it matters. We use huge sealed plastic tubs we dump ours in, but our farmer neighbor across the road has 4 garbage cans she dumps her feed in for the various animals.