ANSWER:

No need to give for the past years. 

From next year you should give zakat ul fitr yourself if they insist on paying the money.

QUESTION: ‎Last year, I got to know that Fitrana shouldn’t be given as money. My family gives it on my behalf every year as money. However, it is such a small amount that I can surely give it out of my pocket money or the eid money I get as advance. This year, it was the same. Should I make it up for every year since becoming an adult or only the last year and this one?