Bad service by matina at mall of Africa

I bought stationery at cna on the 13th of January. I have to submit proof of purchase to my husband's employees, but now some of the items on the slip disappeared. Called the store and spoke to Matina if i can email the slip, they do reprint and email it back to me. She said she can't i have to come to the store they are offline. I have a newborn here, so i should force myself go to the taxis to the mall with the newborn? The due date for submission is tomorrow (wed). I'm saddened on how CNA don't care about their customers but our money.