Dragon Age 2 DLC for XBOX 360 another way to acquire

Hello my name is Haywood Pemberton and I wandering if I could order my Dragon Age 2 DLC through CD or USB.  I have heard of many problems with online Market Place and some Games getting messed up in the process.  Is there a way to order it through yall on CD.  If you have a special edition dragon age 2 with all DLC that would be great.  I have heard many problems regarding all platforms like data missing, glitches, and other problems.  I also heard someones disc getting messed up in the process.  Please let me know.

P.S I will gladly pay for it online through you guys and also have a hard copy.  I do enjoy playing games over and over again.