Sent New BWG320 Gateway, and then sent VIP1200 receivers (3) and I see no way to hook them up together.....

Have had problems in dealing with "Customer Service".  First, since my current gateway/modem is now not receiving any updates, I called and they sent me out a BWG320 gateway.  They did not look and see that I also have U-Verse cable, and I saw there was not a way to connect the new gate way with my receivers (3 - and two of them are wireless).  SO, after another call to "Customer Service" they sent me 3 new VIP1200 receivers, with NO new remotes (mine are currently 7 years old and on their last legs).  I just assumed (mistake on my part) that the new receivers would also have new remotes......silly me.  Anyway, after looking at the new receivers, I do not understand just how a connection is not needed to the new gateway, and after looking on the internet, see that a hard wire cable is required...or have I missed something?  Oh, and if I DO need some sort of wiring to connect them, none was sent.  I am not a happy customer, especially since I have been an AT&T customer for quite some time, and well frankly, when I am renting the equipment, for all those years, and support stops for that equipment, and an upgrade occurs, it now requires a new phone call (so now, that will make 3 calls) to "Customer Service" to schedule a tech to come out and clear this mess up, oh, and joy, for that privilege and honor, a $ 99 fee is assessed and I must pay.  I need help here.  I believe that no one is checking just what equipment I have, and what was sent to replace it, let alone any sort of cables or specific wiring I might need.   Oh yes, one other thing, I do have the fiber coming into my house already, along with the box that goes on the wall. Sure wish I could leave my contact information to someone here that works for AT&T regarding this problem, as it not only is an Fiber Internet thing, but coupled with U-Verse TV. Oh, and one other thing....says to access the receiver manual, to go to www.att.com/usersguides and guess what....