empty promises

MTN advertised a mega biz deal with a router with 60GB per month for R199. We app**** for this and we where approved. But now they say that the router is out of stock and they do not know when they would get more routers. I went to the shop to find out what was going on and how long it would still take because the said maybe they will get another router and was told there still was no stock available but the advertised the same deal again for October.