This is some kind of credit card managed by GE credit. Did you sign up for an account at a store with Home Design in the name?
If you don't recognize this account, then dispute it with the credit bureau. It could be a simple error and easily fixed. If that doesn't get the account removed, you will then have to contact GE and dispute the account with them as potential ID theft.
People who take advantage of retail store credit programs often go through GE (General Electric) for their financing. It sounds quite legitimate. If you purchased anything on credit from Home Design, that's where it came from. Are you claiming to have never heard of a Home Design store?