Suspicious maize meale

I bought 12,5 ACE SUPER MAIZE MEAL when I cooked it became blue and I reported it to Tiger Brands and they said they will collect it for testing purposes but till now I'm waiting for them I do have a case number for my correspondence I also sent them a barcode, till slip and pictures of the cooked pap, I opened the case on 27 September till now I'm still waiting