Unlike most other employment rights legislation in the UK, which generally rely on affected individuals raising grievances and making claims, if necessary, before tribunals to enforce these rights, the NMW has compliance teams, attached to Her Majesty's Revenue and Customs (HMRC) offices who will act on approaches from workers who think they are being paid less than the minimum wage by contacting and visiting their employers. Affected workers can either make a complaint directly to a national helpline or seek advice from another agencies such as their local Citizens Advice Bureau or the Scottish Low Pay Unit—this is particularly recommended if other employment rights issues are involved, as the HMRC can only deal with minimum wage enquiries.