Disgusted with the service

I bought a wash machine from standard furniture a year and a half ago, my washing machine should be finished paid july 2023. Last month my spinner gave me problems, i contacted the collecter he said he would contact the office to send someone from defy to fix the problem. I only owe r350 on the machine, he gt back to me stating that the machine is only under a year guarentee however i was told it would be under guarentee for the 2 years that im paying.. They now refuse to fix my wash machine, telling me that they willing to fix it only if i pay half of the amount for them which is r500 they came with abform for myself and husband to sign stating that standard is not liable for any cost to having the machine fixed. I am now refusing to pay or sign anything. They just lost a customer.