In October I signed up for AT&T speed Direct Elite at $19.95/month with a $100 modem rebate. I was out of the country for the past two months so was not able to check on my rebate (in the form of a Visa checkcard) via https://rewardcenter.att.com/, but today I did and found that my account number was not valid. I called to investigate the problem, and was told by the ATT Rewards Center that only DSL with home phone service was eligible for the $100 credit. I explained that perhaps this is the case now, but this was not the case in October... read full review »