False advertising and untrained staff

********* ADVERTISING...you loose any value of rewards if you do not spend all the value on rewards voucher. Sadly this info is "hidden"and Total Service station attendants are not trained and will not tell you this when you redeem a rewards voucher. You loose any value of rewards if you do not spend all the value on rewards voucher. Sadly this info is hidden to us and Total Service station attendants are not trained and will not tell you this when you redeem a rewards voucher.