What influence do the following facts have on the validity of the relevant contract and the remedies available to the parties? (Keeping in mind the requirements for a valid contract and consensus)

2.1. Gary is in a process to open a motor spare parts business in central Johannesburg. He is negotiating with an agent in Nigeria to import the parts. Gary's friend informs him that he can get the parts cheaper from an agent in Zimbabwe. Gary informs the agent in Nigeria that he will import the parts from Zimbabwe. The Nigerian agent indicates to Gary that if he does not conclude a contract with them. that there will be consequences and that they do know where Gary and his family resides. Gary does not want to put his family in any danger and therefore enter into an agreement with the Nigerian Agents. (16 marks)

2.2 Sifiso is the owner of a bicycle shop. Zingapi, 14 years of age enters into an agreement with Sifiso to buy a racing bike for R4000 and to pay the bicycle off over 5 months. (7 marks)