Cash Converters Elgin - playing games

Purchased a few items from Cash Converters - Elgin. 2 days later - I attempt to work the Washing machine. It did not work. Called the sales person and let them know. I took the machine back so they could attempt to repair. I cannot find my slip (was moving house recently) . What upsets me is - they take your details when you buy... I.D.# and telephone.... how difficult is it to look on the system what I purchased? Head office - tells me they cannot reprint the invoice. Common guys... We know that you have to keep financial records... right now - no machine and no money.... you expect me to just leave you with both items? You running a charity or a business?!