PLEASE HELP C++, THANK YOU

Programming Assignment 2 Cell Incorporated has five different subscription packages for its customers: Package A: For $29.99 per month 250 minutes are provided. Additional minutes are $0.27 per minute. Package B: For $39.99 per month 500 minutes are provided. Additional minutes are $0.23 per minute. Package C: For $49.99 per month 750 minutes are provided. Additional minutes are $0.21 per minute. Package D: For $59.99 per month 1000 minutes are provided. Additional minutes are $0.19 per minute. Package E: For $69.99 per month unlimited minutes provided. Write a menu-driven program that calculates a customer's monthly bill. You must use the SWITCH STATEMENT in the program. It should ask which package the customer has purchased and how many minutes were used. Do not accept negative values for the number of minutes used. Be sure the user only selects package A,B,C,D, or E