HSBC Bank Account Or Service Complaint

HSBC Bank account or service department,

Checking account Account opening, closing, or management Ohio

I opened and funded an HSBC Advance Checking Account around -/-/- by telephone using a referral code, -, from a friend, - -. HSBC has a promotion that is supposed to issue me a credit of $100.00 for opening an Advance Checking Account using a referral code within - weeks of fully funding the account. See offer attached. I have called many, at least 3, times over the last 3 months trying to get my bonus. But continually I have been told that HSBC has to look into my situation more. I was finally able to get a nice customer service rep, Tin, last week who seemed to be helping but in the end she said that the " back office '' was reviewing my account and a decision would be made by the end of -/-/-. This is totally unacceptable. I have spent hours talking to the bank to get my deserved bonus. I have done everything required to deserve my reward and now I want the bank to live up its obligation to me.