Loose bolts on a new fitted tyre

I bought a new tyre at the branch in Ormonde and had to beg the guy to put back the spare wheel in the carriage it normally sits in. When I drove close to 10km the car started shaking and in my mind, I thought maybe they charged me balancing and didn't do it. Drove slowly until I reached home only to find out that they didn't tighten up the bolts. I nearly died if I didn't be mindful and all. It was the last time they would smell my money as that's the worst service one can get from a wheel place.