Boost problem

[Ljop]

I’ve recently had my a3 remapped now it seems that when I accelerate an it starts to boost it sounds like something is blocked sounds like a boost pipe has split but hasn’t an air is being pushed out ov somewhere I’ve been told my cat has collapsed an then told its my EGR the place I had it mapped can’t get it bk in till the 10th

[VAG-Abound]

Not sure if you're asking a question rather than reporting a disappointing experience. Cat and EGR are on the exhaust side of course - any reason the finger is being pointed there? Are all the inter-cooler seals well mounted on the other side?