Kidney stones

I have kidney stones and went to VK hospital and VinMec . Neither of them can do a lithotripsy or shock wave procedure to break up large stones into small ones that can be passed normally. They advise I have to go to Saigon. Surely not!
Anyone had this done? If so can you give me details of where etc.

You can come to Family hospital on this coming Saturday for a free consultation with Urologist from Thailand

I would say the information given would be correct. Try Binh Dan hospital in Saigon.