horrible service from a PEP employee who deserves to lose get job

I'm writing this review with the outmost disappointment and anger over a good company like PEP,which is one of the most thriving companies but makes the worst decisions in hiring *********** imbeciles such as the lady by the name of Lydia at the PEP carletonville branch. On Sunday my wife and I went to PEP to carlentovillr branch to exchange items and take other items as well.upon arriving at the counter we were met by this lady who is clearly tired by here job. My wife advised this lady to exchange the items first which were on sale when purchased.Lydia advised that we cannot do such as they were on sale of which we asked her to please show us in the receipt given where its written that items on sale cannot be exchanged of which she continued to tell us that its not on the slip and she doesnt know why but that's how it is.It was then requested for to call HQ as ma escallation as it isn't stated anywhere,of which she literally told us she's not doing that,its a sunday and she's wants to knock off so we must call it to do her job. The employee you guys have hired is smug,clearly not that smart and doesn't understand the principles of her job so Im reaching out to higher management or someone at PEpP that will take my enquiry serious and take this to task as it is acceptable to have someone like that service clients,she's not doing us a favor as clients she's at work and needs to be reminded or removed.