Flaw products of Tesco

In the month of early September, I purchase a pack of 3 in 1 spirulina cereal drink, 1 of the sachet got "unidentifed item" + a human hair.. I made complaint to customer service of Tesco. Hmm.. their service is good, fast feedback and provide relavant compesation to me. As a compesation, I had my product refund back in Cash Term + RM50 Tesco voucher as the TOken appreciation. Anyhow, i also not dare to drink those product that manufacturer by Tesco.