Cash Crusaders unfair

I bought a tv from the on the 6/8/2018 that gave me 12 months warranty and they wrote on the warranty slip and extra 2 years repair warranty so the tv was giving problems cash Crusaders advised us to bring the tv in so I took it with all required receipt 22/03/2020 everything was in order only problem I didn't take the remote an the box they said they will get it repaired then the lock down was on the 26/03/2020 they kept the tv with the so when cash Crusaders opened u went to the ti check the status they telling me that they don't have the warranty an they need it but when I took it to them the 1st tint they had it now that they lost it due to neglegant they making me run up an down looking for it how can I have the warranty we i gave it to them i tried explaining it to them that they would never have taken the tv if they was no warranty they refuse to look for it ab assist me they saying I must take the tv an sort it out myself I an unemployed barely have food to eat how can I repair the tv on my own when it is on warranty please as it me with this problem thanking you in advance