What to do with new pants/are they ruined

Hi everyone. 

Recently bought these dress pants at a mens store in town because they are of fantastic quality although quite expensive (for me) at over $250. Obviously I needed them hemmed and thought hey why not just get them hemmed here instead of my other tailor...I got them back today and they look a mess to me. The material is not even at the bottom and is bunching up most likely because the strip is not evenly sewn. Can this be fixed or does the store have to replace my pants? I've never had this situation and someone screw up my stuff like this..

Greatly appreciated Despos, being fairly new to the process it's important to me that it is done right. I will definetely show the store the issue as well for future reference. It seems a little silly that the sales person would take the pants, inspect them and pack them and simply hand a product to me that wasn't done right.

Mario