Rewardsco takes advantage of older customers

Rewardsco phoned my father, who is 78 years old, and told him that they were phoning on behalf om MTN. They asked him if he is satisfied with his cell phone contracts and if wanted to stay on the same contract. He told them that his is satisfied. Rewardsco then locked him into his existing contract for another period of 24 months on both his contracts. We contacted MTN to see if we can make changes to the contract and they referred us back to Rewardsco. It seems like Rewardsco is targeting older customers and is taking advantage of them.