Wrongly info given for Preapproved account

2 weeks ago a guy in that store approach me said if I want account I can fill it in after explanning to him I only get disability pension etc then he said no i will get approved so I said that fine I will fill it in. Last week I get sms from Ackerman saying I have been preapproved just need 3 months bank statement/3 month salary slips so I go to Ackerman on Sunday and the lady that works there I show her the sms and explain to them I don't get those only have sassa card then lady gave me a form employment said I must just ask my neighbour to fill it in which I did and went there today another guy had a look at the form and said no i can't use this I must go to sassa and get 3 month from sassa so I explain to that guy well this lady said I must use this. I am just going back n forth which is unfair for me if they can not do their job properly. Please train ur staff to do their job properly and don't make customer upset like for example telling me I can get account then boom no i can't it's not fair. I can not phone to make a complaint as I am deaf.