PHONE WIPED AND NO SIGN OF BACKUP

Phone bought 19.03.2014. April 2015 it started giving problems with the battery. On 20.04.2015 I took the phone Vodacom Tygervalley. They took the phone in. I paid in store for them to make a backup of everything on my phone. On 28.04.2015 I receive my phone back, but it still gives the same problem and now the memory card slot doesn't want to read my memory card. Took the phone back on 30.04.2015 to Vodacom Tygervalley. After waiting for 3 weeks they let me know it will cost about R1500 to fix the phone, so I decline the quotation. On 25.05.2015 I went to go and collect my phone again from Vodacom Tygervalley. Memory card slot still not working and now they tell me, they only keep the backup (which I paid for) for a month, so there is no backup of all my stuff anymore. How can this be? And now they will also not refund me for the money I had to pay to make a backup initially? <br>