Wrong info on phone

I honed and mailed befor i came as i am in a form about 130km away. Goet the phone i asjed 2 time if it kan take 2 sims yes she said and there was no information on the boz she said toe me i musnt but the sim in only the nezt day i put it in and needless to say it takes only one sim i phones vodacom they said they cant help i have to go back to the store. So i phoned game no manager was in and the let me spoke to a lady i explained all she will get back to me about 5hours later i phone again still no manager the guy said i must come in todag. Nnow about my petrO driving up and down becuase there info yo me was wrong?????? I nees help please let me knoe