Promises not upheld. Staff not replaced, additional work, toxic environment, aggressive behaviour was common with shouting and things being thrown even... in large meetings. Witnessed a huge turnover of staff, one week 5 would start then the second week 3 or 4 of them will have left.
It was regular occurrence for many I spoke to that they would be promised things that never happened. Promotions, training, moving to other projects. Even when signed off, emailed verifications etc, it would just get swept under the carpet. HR were wild when one team member complained.
Note, 5 previous colleagues have all now told me that upon leaving BB sent claims for over pay and holiday pay to them. Myself included... literally debt collector letters turning up! What a tactic...