Does any one know if de-catting the fabia makes is good or not as i have herd it can blow the turbo quite quickly is this true or not?

Top right of your screen, there is a search button. This has been covered quite a bit.

Well Ive had mine on for a while and no issues

If the car has been remapped and its running more boost yes it can cause issues on a standard map or with a tuning box no trouble at all.