Is there any additional costs too taking a class again?

Sorry if the question seems stupid or ill-informed as I don't exactly understand the issue my family is worrying about.

ID124 here. Just failed GERIZAL 'cause of a mix of my own stupidity and nightmare prof so I plan to take it again this term.

I informed my family about the issue but got a response about the extra costs for taking a class I already had taken.

Needless to say, not what I wanted nor needed to hear right now but I understand if it really is going to be a huge cost for me to take another class again.

If it's just a personal sacrifice. I can take a little extra stress for the 2nd term. I just hope they don't have to pay anymore than is necessary just because I'm stupid and my prof didn't say anything.