I rejected the quote i cant pay for repairing cost

i send my phone for repair at samsung store at Mall of the north on 23 February 2015, After 2 weeks i received a call from samsung repairs centre advising me about the quatation of R5200 for repairing the phone and i rejected the Qoute. on the 26-03-2015 i went to Mall of the North to collect my phone the told me the phone is not back i must wait for their call. <br> on the 08 april 2015 i received from Mall of the north the told me the phone is back and its been repaired an i need to pay full amount R5200. i explained to them that i rejected the quatation and i m aware of R250.00 fee for rejecting the quote.i went to Mall of the North Personally and explained to them what happenned. The told me they aware of the mistake that was done by their Head office consultant and job card shows that i rejected the quatation but the phone was fix so i am liable for payment otherwise they will have to take the phone back Repair CentreTo UNREPAIR IT, <br> They want me to pay the money for the consultant mistake and i have been suffering for 6 weeks without the phone.<br> I rejected the quote i cant pay for repairing cost.