Career progression in the UK is somewhat limited. You can get promoted if you are prepared to wait a long time.
The other downside is the pay in that it is not that great (at the time of writing) and imporvments are infrequent. Bonuses do vary in line with business performance. This is in the context of what salaries are like in competitors - if you want a better salary you can often get one quite easily through leaving the business.