How to write the data multiple times on one time running?

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C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#define STRING_LEN 200

int new_acc(FILE * fw, char *name, int *dob, int *id);
int i;
char one='1', two='2', choice[STRING_LEN], option;
static const char * listing[] = {"Name", "Date of birth","ID card number"};

int main(){
	FILE * fw = fopen("fiile.csv","a");
	int dob[STRING_LEN], id[STRING_LEN];
	char name[STRING_LEN];

do{
	while(two != choice[0]){
		printf("%c. Create new account\n",one);
		printf("%c. Update information\n",two);

		printf("Enter your choice: ");
		fgets(choice, STRING_LEN, stdin);          

		if (choice[0] == one){
			new_acc(fw, name, dob, id);
			break;
		}
		else if (choice[0] == two){
			printf("Selected Two\n");
			break;
		}
		else{
			printf("Please enter the correct information.\n");
			break;
		}
	} // End of while loop

	printf("Go to the main menu [y/n]: ");
	scanf("%s", &option);
	while (getchar() != '\n') continue;
  }
  while (option == 'y');

  return 0;
}

int new_acc(FILE * fw, char *name, int *dob, int *id){
	char data[8][STRING_LEN];
  do{
    for (i = 0; i < 3; i++) {
      printf("Enter your %s: ", listing[i]);
      fgets(data[i], STRING_LEN, stdin);
      while(strcmp(data[i], "\n") == 0){
        fgets(data[i], STRING_LEN, stdin);
      }
      data[i][strlen(data[i])-1] = '\0';
    }

    fprintf(fw, "%s,%s,%s\n", data[0], data[1], data[2]);
    printf("Insert Data Again [y/n]: ");
  	scanf("%s", &option);
  }
  while(option == 'y');

  fclose(fw);
return 0;
}

What I have tried:

In this code whenever I try to create a new account and enter information. In the end, it gives me the option to Go to the main menu. I press y to continue and try to create new account again. This time the data does not write in the file. Whenever I exit the program and start again to write, it works. But the problem is not in writing. Instead in the same running program, it does not write the data into a file