Poor after sales service!

The battery had to be replaced. I took delivery of a 2023 Renault Traffic with 33000km on the 21st Feb 2025, and drove the vehicle daily for approximately 2 weeks before it had to go in for hail damage repairs. This was the first time since purchasing the van that it was not in daily use. When I fetched the van from the repairer the battery was flat and neede to be jump started. The van was in daily use again for about 2 weeks with no indication of battery issues. Then the vehicle stood in our warehouse for a weekend the flat battery issue again started. We monitored for 2 weeks and found that if the van was not used daily the battery would not work. I contacted Motus Isuzu in Bfn (Bazil) who suggested that I take it in to Renault for a battery test, a week later Renault tested and said thet the battery needed to be replaced. I called Bazil and he said that a battery was not covered and I should bear the cost. I disagreed, but replaced as I had to get the vehicle right. I have contacted Joseph at Motus who said they will refund me, however this never happened and I only got silent treatment ever since. I have had no official feedback nor any refund for the battery.