Fails Advertising!

I bought 20 pairs of Bata school shoes at Spar than I asked the Manager Mr Babini to keep 10 pairs aside for me I told him I will come pick them up after work today and he said yes, today im calling the spar just to let them know im still coming Miss Carel Mc Carthy calls back to tells me that i will not be getting the shoes cause its a campaign Mr Babini made a mistake of which on the AD it does not say anything about the AD.