Been working on this program for a while now. (had some problems and asked a few times here.) Ran into another one though! The program asks for my account type twice. Can not figure out why or how to fix it. Any help is appreciated, thanks!

    /*
project3.cpp
Andre Fecteau
CSC135-101
October 29, 2013
This program prints a bank's service fees per month depending on account type
*/

#include <iostream>
using namespace std;
/*
Basic Function for Copy Paste
<function type> <function name> (){

// Declarations
// Initalizations
// Input
// Process
// Output
// Prolouge
}
*/

void displayInstructions (){
// Declarations
// Initalizations
// Input
// Process
// Output
cout <<"| -------------------------------------------------------------- |" << endl;
cout <<"| ---------- Welcome to the bank fee calculator ---------------- |" << endl;
cout <<"| -------------------------------------------------------------- |" << endl;
cout <<"| This Program wil ask you to eneter your account number.        |" << endl;
cout <<"| Then it will ask for your account type Personal or Commercial. |" << endl;
cout <<"| Then ask for the amount of checks you have written.            |" << endl;
cout <<"| Lastly it will output how much your fees are for this month.   |" << endl;
cout <<"| -------------------------------------------------------------- |" << endl;
cout << endl;
// Prolouge
}

int readAccNumb(){
  // delarations
  int accNumber;
  // intitalizations
  accNumber = 0.0;
  // input
  cout << "Please Enter Account Number:";
  cin >> accNumber;
  // Procesas
  // output
  // prolouge
  return accNumber;
}

int checksWritten (){
// Declarations
int written;
// Initalizations
written = 0.0;
// Input
cout <<"Please input the amount of checks you have written this month:";
cin >> written;
// Output
// Prolouge
return written;
}

char accType (){
// Declarations
char answer;
int numberBySwitch;
// Initalizations
numberBySwitch = 1;
// Input
while (numberBySwitch == 1){
    cout << "Please Enter the acount type (C for Comerical and P for Personal):";
    cin >> answer;
// Process
switch (answer){
    case 'p':
        answer = 'P';
        numberBySwitch += 2;break;
    case 'P':
        numberBySwitch += 2;break;
    case 'c':
        answer = 'C';
        numberBySwitch += 3;break;
    case 'C':
        numberBySwitch += 3;break;
    default:
        if(numberBySwitch == 1) {
        cout << "Error! Please enter a correct type!" <<endl;
        }
    }
}
// Output
// Prolouge
return answer;
}

int commericalCalc(int checksWritten){
// Declarations
int written;
int checkPrice;
// Initalizations
checkPrice = 0.0;
// Input
// Process
if(written < 20){
    checkPrice = 0.10;
}
// Output
// Prolouge
return checkPrice;
}

int personalCalc(int checksWritten){

}

double pricePerCheck(char accType, int checksWritten){
// Declarations
double price;
char answer;
// Initalizations
price = 0.0;
// Input
// Process
if(accType == 'P'){
}
if(accType == 'C'){
    if(checksWritten < 20){
        price = 0.10;
    }
}
// Output
// Prolouge
return price;
}

int main(){
  // Declarations
  int accountNumb;
  char theirAccType;
  int writtenChecks;
  double split;
  // Initalizations
  accountNumb = 0.0;
  writtenChecks = 0.0;
  split = 0.0;
  theirAccType = ' ';
  // Input
  displayInstructions();
  theirAccType = accType();
  accountNumb = readAccNumb();
  split = pricePerCheck(accType(), checksWritten());
  // Output
cout << endl;
cout << "Account Type: " << theirAccType << endl;
cout << "Check Price: " << split << endl;
  // Prolouge
 return 0;
}