Bad service/Very Bad Attitude

We were at Toys R Us Mall @ Reds on 26.11.2017 to search for Christmas gift for my son. While we were going through the shelves the was a spider man cell phone which I though I will buy while were doing other shopping in the Mall to keep him busy. Once I got to the till (Peace) assisted me I mentioned to her that the phone is not working can she just check if it the batteries or something with the toy, she then called over OB whom then opened the toy at the back still no sound. They both almost assured me it is the batteries, because they don't stock that sort of batteries at the shop I said I would go to game and go buy but then require a refund because the toy said batteries included. After going to game they didn't have that sort so my husband went to the jewelry shop just a shop or to away and bought the 2 batteries, only to find out that the toy was still not working properly and was very soft to had to have it against you ear to hear. He then turn my word around and said he never said I must go buy batteries and then we insisted to speak to the manager. Naomi came and there was still no solution after we paid R130.00 for two new batteries on a R30.00 toy. She was only willing to refund me the R30.00 paid for the toy, after other decision was made by the other staff members. I also said to her OB and Peace must have called her first before insisting that only the batteries needs to be replaced then the toy will work. Now my son have no toy and two batteries we can do nothing with.