A lot of posters on here sing the praises of Bosch blue, i have owned Bosch blue too and never had any trouble with them but if it had of then the story would of been the same as yours;wait in all day for the courier to pick up and againg to drop off, whichever make of tool you have you'd probably have to do the same so why the dewalt bashing.
I happen to have quite local to me a pretty good tool shop that is a Dewalt, Bosch, Hitachi, Panasonic, Milwalkee, Trend you name it dealer, owning a brand name tool means you get customer support, something you will not get with sheds own brands or even screwfixes own, why didn't you take your Dewalt to one of hundreds of authourised dealers and get it fixed, maybe they'd have got the parts in stock already or even robbed them off another just to get you back working again, thats certainly the impression i got from my local dealer
I happen to have quite local to me a pretty good tool shop that is a Dewalt, Bosch, Hitachi, Panasonic, Milwalkee, Trend you name it dealer, owning a brand name tool means you get customer support, something you will not get with sheds own brands or even screwfixes own, why didn't you take your Dewalt to one of hundreds of authourised dealers and get it fixed, maybe they'd have got the parts in stock already or even robbed them off another just to get you back working again, thats certainly the impression i got from my local dealer