Discover Bank Account Or Service Complaint

Discover Bank account or service department,

Savings account Deposits and withdrawals Texas

Discover Bank sent me an offer stating that if I opened up a savings account with them, depositing at least $10000.00 by - - 2015, they would issue me a $100.00 promotional credit within 4 weeks of opening the account. I opened the account, placed the promo code in the field, saw where it said I would receive $100.00 and proceeded to deposit $15000.00 into a savings account transferred directly from an external credit union. After 4 weeks, they only issued me a $50.00 credit. I complained to Discover Bank but was told they needed 6-8 weeks to " investigate '' the issue. This seems like a well thought out scam - the bank gets my money and can loan it out or invest it at a higher rate than I am receiving, and they delay on giving me the full promotion to which I am entitled thereby making even more profit off of the offer they seem unwilling to honor.