Unsatisfied

I took my Hyundai i10 to do major service for 90 000 Km on the 22 September 2022. Then I went home for the heritage weekend.Yooh my car was making all sorts of noise mind you I took it there since I knew I will be travelling for a long distance.

The following week on Thursday I went to them , I was told after they installed a new fan belt or changed it must be adjusted and they did that just that . I Went home .

Following morning same ugly sqiuck sounds. Decided to give more time and traveled the whole week with it like that . I went back I was I told its better in the morning because in the afternoon it's hot and expansion ......just a lot. But they still check on it .

Today it still has same sound. I'm worried everyday and don't travel at night or at a distance because something is not rite.* What must I do now !!!!*