Hi Forero, I am a motorcycle mechanic but at the beginning of my time I went from cars, I will tell you that in principle that light does not warn that the distribution strap is broken, that light was the notice of what then happened, something worked badly and crak, it broke, you could not have avoided it. The distribution strap is convenient to change it a little before what the manufacturer tells you and it also depends on the type of use that is of the car, abrupt accelerations, etc. What if I recommend that you change the belt, tensioners and guides that carry, as well as that they check the water pump, how it is in sight and the fat is done, I imagine that I imagine that they will have folded any valve so they will euros nobody saves you so resignation ...... Greetings.
PD do not comment why you took him the previous time, the same thing they touched something that they should not have touched .... take another workshop for contrasting opinions ... there are a lot of shots distributed ....