Troubles with the if and else statement

I am still a beginner in C and am currently having trouble with if and else statements.

I kept getting an element in the array deleted despite the input not being found in that array.

The output:

Before deletion:
B D Z X W M O S P H G E 
Input your letter to delete: 
A

Letter to delete: A


Element A is not found in the array


Array Content:
B D Z X W M O S P H G 

Instead of the desired output

Before deletion:
B D Z X W M O S P H G E 
Input your letter to delete: 
A

Letter to delete: A


Element A is not found in the array


Array Content:
B D Z X W M O S P H G E

I have tried to change for (i = 0; i < size-1; i++) into for (i = 0; i < size; i++) in else statement but the printf would only show the original array. I also tried to construct printf for the original array but both the original array and the misleading array content will print in the output. I need to know how to handle the error. Please teach me how.

#include <stdio.h>

int main() {
{
    char letters[12] = {"BDZXWMOSPHGE"};
    char toDelete, found;
    int i, pos, ch;


    printf("Before deletion:\n");
        for (int i = 0;i<12;i++)  {
            printf("%c ", letters[i]);
    }
    printf("\nInput your letter to delete: \n");
        scanf(" %c", &toDelete);

    found=0;

    printf("\nLetter to delete: %c\n", toDelete);
        for (i=0; i < 12; i++) {
          if(letters[i] == toDelete)
        {
            found = 1;
            pos = i;
            break;
        }
    }
    if(found == 1) {

        for(i = pos; i < 12; i++)
            letters[i] = letters[i+1];
            
    }
    else
        printf("\n\nElement %c is not found in the array\n\n", toDelete);

    printf("\nArray Content:\n");

    for(i = 0; i < 12; i++)
        printf("%c ", letters[i]);

}
    return;
}

You have my gratitude. Feel free to leave tips on how to improve this even more.