Problems with Receiving Messages
My brother and I both have IPhone 6s with At&t. My brother, dad and I use the same Apple account. My dad and I have no problems sending messages to one another. However, my brother isn't receiving my messages. We can call one another. He can send text and iMessages to me (I receive them) but he can't receive my messages I send to him. I tried sending them as text and iMessages but neither worked. We updated his phone, so we both have the most recent iOS. I don't know what to do, I am open to any help.
iPhone 6, iOS 8.3