All the feed suppliers near us, and even further away, seem to use Farmgate pig feed, and their poultry feed too. I have never had a problem (so far).
Re the mouldy feed - how can it be proved it was mouldy when it left the bagging plant?? I know two of our suppliers who store their bags in a farm building and quite often the bags are damp .....so thats not Farmgate's fault, but the supplier.......not defending Farmgate, but surely they will try and say it was ok when it left their place?