Awful service/no resolution

I bought an Lg sl5yf sound bar from makro in october 2021. The product was working fine until a few days ago when an error saying D protection Popped up and it switched off. When you switch it on now it says d protection and automatically switches off. I took it back to Makro and they said they need to send it in for repairs and i will only get it back in January. The return policy says if the product has any defects within the first 6 months they will replace/refund/repair according to what the customer feels is the best option. They only allowed me to send it in for repairs and i was not given any other options. They said that because it’s December I’ll only get it back in January. I am a very big LG fan and 90 percent of all my electronics at home are from LG. I bought the sound bar and now i must sit without a sound bar for December when ill be taking leave for the first time in 2 years and i wanted to enjoy it and now I’m sitting with this problem and noone seems to care. This is the first time i get such bad service with your products but i demand better service and a beter outcome. Please help me sort this situation now because I can’t be buying another sound bar again this month because i can only get this one back in January.