Stuck with Samsung washing machine

I bought a machine years back at home and home which comes with 10 years warranty,the machine is faulty from November I contacted they’re customer care which was very helpful,I was invoiced for a call out after 3 days,though the call out fee to check the machine was expensive on its I didn’t think they’ll take this long to fix the machine,after they’re technicians confirmed what’s wrong with the machine am still waiting for the invoice for a week already,it’s now heading to 2 months with this back and forth,am extremely disappointed with the service let alone these 3 days waiting just for an invoice,no call from them whatsoever.