Bad service from news ackermans bushbuckridge

I made a laybuy at bushbuckridge the new ackermans that opened this year. I went to cancel and take the clothes which amounts to what I have already paid and I've lost the slip. The who seems to be the manager with no name tag told me that if I don't have the original slip she won't be able to assist me. I can't pay the remaining because I lost my job and it's Christmas clothes for my kids. I asked to find ways to help me instead of telling me to wait for the laybuy to expire, I'm disappointed because Ive been helped before where by I totally cancelled my laybuy without the slip and I was in another ackermans. I need help and a way forward because I don't understand how two shops can work differently on the same situation 😬