Book of Heroes player

[Walker1950]

Hi, My Book of Heroes name is Walker. I have an iPhone 5, I believe it is a 5C. I am looking for help with things that interfere with BoH as I play it. A welcoming banner from the game center appears every time I start to play and I want to get rid of it. There is movement in the player versus player part of the game that hides the name of the attack my opponent launched against me. Any help you can give me with these problems, I will greatly appreciate it.