Blue Label connect

Good Day I have never ever seen a company that call u so many times a day, I took there call and while on the call u received another call from the same company, yes I showed interest and then they give a person 24 hours to decided if u want it. I called in today to Blue Label Connect and told them I don't want the connect, after that I received still calls from then and then u told them I don't want the connect. Then they call gets cut, I called in again they told be they can see in there system that I cancelled, I received sms stating they in the process with it, i called in again and they told me 100% its cancelled so I advised them I want my name removed from there data base cause I also work in a call centre. I also asked them to send me proof that this connect is cancelled cause it that phone is gonna be delivered I am not gonna excepting it and I am signing for nothing o yes apprently when they deliver u should have u bank card and u should proof it the bank they should deduct monthly that I never hear of in my life... My question is l, is this a legit company cause that part should very suspect... And how do I no its cancelled. I saw a few complains about this company