Refund or Replacement

I bought a Ryobi Leaf Blower in 2017 and have a 2 year guarantee on it, when it suddenly stopped working last year I took it in to Game Cresta and I gave them my slip and they said they will send it to Ryobi for them to look at, they took 21 days ie 4weeks and when it came back they said Ryobi will not replace or refund as per the warranty/ guarantee but they will charge me to repair it as the motor is finished, this is not true, as I had someone else look at it and it is just the switch, anyways I am Games customer and they should be having this fight with Ryobi not me, Game should have offered to refund me or replace it as per my slip and the terms and conditions, I dont appreciate the passing of the buck, I demand to either be refunded or be given a new leaf blower as per my warranty.