Depends if the impellor has damaged the housing
When mine went it totalled everything...........

Cost between a refurb and a brand new item sometimes isn't all that different
Oh and drive it to the garage or get it recovered. If it lets go completely the engine may run on like mine did and the only way to stop it is to stall the engine
Was rather surreal as I was stood outside the car with my keys in my hand and yet the engine was still revving. Luckily for me a passer-by knew what to do and saved my engine!!