Sisters, can you get a refund for lip filler?

I went to get filler around the end of October.
 
I originally planned to get domestic filler even if I got a touch-up
 
, but the head of the consultation room tried to sell me that I could get Restylane for a year without needing a touch-up
 
, so I ended up getting Restylane.
 
It's been 17 days now and it's almost all fallen out
 so I called the hospital and the director in charge is on vacation and another director
 said
 - Even if it's 1 year, it can fall out quickly because there are individual differences
 - That's because you didn't come for a touch-up within 2 weeks
 - If it's fallen out, you have to pay extra to have it retouched
 - In the case of a refund, it's difficult unless there are serious side effects.
 
He just went back on this and made plans to talk to the director in charge again tomorrow, but this is so absurd.
 
When I consulted with the director
 in charge, he never told
 me to come for a touch-up within 2 weeks or
 that it can fall out quickly because there are individual differences.
 And the doctor and nurse only put in 0.8cc
 so I asked them to put in more but they said
 they couldn't put in any more and that any leftovers would have to be thrown away once they've opened
 it . The conclusion was that the director in charge of the consultation said there would be no retouch and that it would be 1 year so
 I got Restylane, but it all fell out in 17 days
 and I have to pay extra to get more and I can't get a refund.
 This is the situation.
 I've lost trust in this hospital and I don't want to entrust my face to them.
 Can I get a refund?