Mr$.$ A rented an apartment from Mr$.$ B overlooking Sungai Setia for the purpose of watching the annual boat race and the competition for the best decorated boat. These events are to take place the whole day and the evening of the next day. Mr$.$ A also paid RM $100$ as the deposit for the room.

However, early the next morning an announcement was made over the radio that the competition for the best decorated boat would be postponed to a later date but the rest of the program for that day remained the same. On hearing this, Mr$.$ A called Mr$.$ B to cancel the arrangements between them and requested that the deposit paid be refunded.

Mr A case is fall under what section?