Bad customer service.

So disappointed with a cashier at pep so early in the morning staff at pep black chain center they don't have customer service at all I usually buy the cause it's near home but today it was worse they treat customers like we a nothing the need more training on how to treat customers went in to buy a voucher for 40 I have 100 the first cashier told me she doesn't have change I must buy to the another cashier ok right went to the second one 40rand voucher pls he was so rude he said I don't have change while standing there he called next customer was like so I won't get the voucher because you don't have change his like yes.Because we a staying a locations they treat us like we a nothing something must be done they lack customer service.