M
- MABS (Money Advice and Budgeting Service)
- 1890283438 Call Instead – 018129350
- Magnet Customer Service
- 1890809000 Call Instead - 016811601
- MBNA Credit Card Customer Service
- 1890409511 Call Instead – 0719656262
- MBNA Lost or Stolen Cards
- 0818409511 Call Instead – 0719656262
- Motor Tax (Shannon)
- 1890411412 Call Instead – 061365000
