Working regular full time hours on a zero hour contract

Hi as per the subject title, I have worked 7.5 hrs a day, Monday to Friday, for over 2 years. However my employer pays me 12.50 and hr basic and 1.50 and hr holiday pay. Can they do this, they pay the so called London living wage, I dispute this?

Hi,
We cannot comment on specific arrangements without undertaking a full National Minimum Wage investigation. We can only provide general advice and signpost to available guidance.  
Therefore, for minimum wage purposes, employers must calculate worker’s pay in a particular way in line with the type of work being performed.
You can find details of what elements of pay count and do not count for minimum wages purposes here:
What does not count as pay for minimum wage purposes
If you are concerned that you are not being paid what you are entitled to you can raise a complaint to us using our online form: 
National Minimum Wage enquiries and complaints
Alternatively, if you require any further support, please seek independent legal advice, or contact The Advisory, Conciliation and Arbitration Service (ACAS) on 0300 123 1100.
Thank you.