Business ProfileforSignature sales inc

I own a small plumbing supply wholesale store in this city I reach out to this guys a year a go because I want to start selling one of the products a plumbing product and they said I was to new so they need me to stay open at lease a year so they can start selling this to me Ill wait a year and a couple of week a reach out to them and they said they will come and see my physical store las month a lady name ****** who is a sales rep for my area show up to my store and she said they will not being able to sell my this product because they said some one tell them we are own by another company thats not true already explained that to them Ill try to speak with his manager and a received the same answer they are basically taking a decision on rumors I ask the if they did a research and find out the true and they said no so they are basically taking a decision based on rumors plus Im feeling like racial discrimination because we ara a Hispanic own and family own small business not like our giant competition who is own by big companies this is a small business discrimination and racism thats the way I felt because they havent give us a valid legal reason to denied us there services this has putting us in a big disadvantage position because som many customers had been asking for this specific product so I hope you guys can help small business like ours to stop this big corporations discrimination against new small businesses companies like us that we are locally own Minority own Thanks