public AlphaPaymentReader(IRawPaymentRecordProvider provider) : base(provider)
 {
 }
 public BetaPaymentReader(IRawPaymentRecordProvider provider, DateTime dateOfPayment) : base(provider)
 {
     _dateOfPayment = dateOfPayment;
 }
 protected PaymentRecordReaderBase(IRawPaymentRecordProvider provider)
 {
     RawPaymentProvider = provider;
 }