Just need help with part 2 & 3

Here is my code for part 1

// Internet Service Provider

#include <iostream>

using namespace std;

int main()

{

char package;

//double total_amount; //Even skipped this!

int hours;

cout << "Select a package: \n" << endl;

cout << "Package\t\tCost\t\tHours Provided\t\tExtra Hours"
<< endl;

cout << "A\t\t$9.95\t\t10\t\t\t$2.00 per hour" <<
endl;

cout << "B\t\t$14.95\t\t20\t\t\t$1.00 per hour" <<
endl;

cout << "C\t\t$19.95\t\tUnlimited\t\tUnlimited" <<
endl;

cout << "\nEnter the package purchased: ";

cin >> package;

while(package!= 'A' && package!='a' && package!='B'
&& package!='b'&&

package!='C' && package!='c')

{cout <<"\nError! You must select package A, B, or C.
";

cout <<"Enter the package purchased: ";

cin >> package;}

cout <<"\nEnter the number of hours used: ";

cin >>hours;

cin.get();

while(hours < 0 || hours > 744)

{cout <<"\nError! Hours cannot be negative or exceed 744.
\n\nYou must enter appropriate hours.";

cout <<"\n\nEnter the number of hours used. ";

cin >> hours;}

if(package == 'A' || package == 'a')

{if (hours <= 10)

cout<<"\nYour monthly fee is: $9.95";

else cout<<"\nYour monthly fee is:
$"<<9.95+(hours-10)*2;}

if(package == 'B' || package == 'b')

{if (hours <= 20)

cout<<"\nYour monthly fee is: $14.95";

else cout<<"\nYour monthly fee is: $"<<14.95 + hours -
20;}

if(package == 'C' || package == 'c')

cout<<"\nYour monthly fee is: $19.95";

cin.get();

return 0;

}

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