Phone not repaired 4 weeks later

I took my tablet to the store on the 8th of July 2015 as my screen was damaged, I gave the consultant all documents pertaining to the tab including an invoice which had my contact number and he said he will take it to repairs.....5 weeks later I go to the store and spoke to the manager who said he didn't take the phone to repairs as it didn't have documents to proof that I bought the tab at Markham. I asked why then did Prince take it if he didn't know that I bought the phone at Markham......I left all the documents at the store including my simcard. The manager said that the staff is used to taking phones without following proper procedure like asking for documents that proof that an item was bought there.<br> <br> He said I must pay R380 and some fee of R350 because I didn't have the invoice but still it doesn't proof that the phone was bought there R1200 for repairs.<br> <br> He also said their system deletes all data after 3 months and so the bar code wouldn't proof that the phone was bought there, so I took my tab and left.