Beko Air Conditioner 41205 Using A Lot Of Electic, Issues Repeat

I've got this Beko air conditioner, it's model number 41205. So, in November, it like totally messed up three times, with like three days in between each time. I asked for a replacement after they told me it needed fixing. So, because it was super inefficient, I ended up having to shell out a whopping 1000 TL for my monthly electricity bill. It got sent in for repairs, but it still hasn't come back after 15 days. So, like, just three days ago (on August 19th), it totally malfunctioned again in cooling mode, with the LED light blinking five times. This is like the fourth time it's messed up. So, the service guy said that the card in your unit is messed up, but unfortunately, the warranty won't cover the replacement since you paid extra to extend it. So, get this, even though this is like the fourth time this thing has messed up and I've asked for a new one, they still haven't fixed my problem. Can you believe it? I'm not gonna give Beko any more business, and I won't be recommending it to others either. I'm so fed up.