What happened to a gentlemans agreement

I bought a new Quest 1.6 2015 with 3 years or 45 000 km warranty.I took an additional 3 years service plan. The car started giving mechanical problems in November 2019 and I had to fork out R5000 to replace 1 jet . The car only done 34 000 km. After enquiring at McCarthy N1 City (where I bought it) they requested me to contact Toyota SA. The latter informed me that the warranty lapsed and that is it . Well Toyota SA the only reason why I bought your product is for your well reknown '' reliability'' .And what happened to a gentlemen's agreement . I`ve been very patient with this case as after speaking to the branch service manager in January 2020 I allowed staff to return to from holiday which he mentioned would be in February with a full staff compliment .I am still patient. Toyota SA let it be known that it was my last purchase from you.