private int GetOtherPhonesinDetails(string[] OtherPhones, string indicator) { int x = 0; if (indicator.Equals("YES")) { x = 1; } int TotalCost = 0; for (; x < OtherPhones.Length; x++) { string Phone = phone_validator.Format(OtherPhones[x].ToString()); string NetworkCode = Phone.Substring(1, 3); int Tarrif = data_file.GetParticularTarrifWithCode(NetworkCode); TotalCost += Tarrif; } return(TotalCost); }