My Bottom isn't as tight as my top

[LaFawnsgrillz]

Got my metal off 3 weeks ago. I had my retainers made and got them the next day. I had forgotten when I got my impressions that I was getting one of my bottom teeth fixed, it had a chip on the back side ,I wanted to wait until getting my bracses off because it had broken two times already. I digress. Anyway , the first bottom retainer wasn't that tight but I didn't worry about because I was going to get a new one made after my chip was fixed. Well fortuniatly my dentist said I would not have to pay to get another one done ( since we probbably should have had the chip fixed a few days before getting my metal off). Well I got my new bottom retainer and at first they were tight, not as tight as the top but still good. Well now they seemed to have loosened up a bit , still kinda tight on a couple teeth but would much rather have them fit the same as the top; nice and tight! Would I be expecting too much to have to not pay for another retainer to be made? In my mind if they didn't get it right they should fix it for no charge, is that being too picky or something?

[LaFawnsgrillz]

I cant remember the name but they are clear and look like invisaline.

[LaFawnsgrillz]

even if it would be a third one?

[LaFawnsgrillz]

thanks

[DentalDiva]

I believe they're called Essix. That's what I have but I have the opposite problem! Top isn't as tight but dentist offered to fix it for me.