How to check if employer is paying employer NI contributions

Hi, A family member with learning issues who is an independent adult has worked for a small local restaurant for over a year but has not had a payslip or P60 despite earning approx £200 or more per week, most weeks. The family member has asked but is always met with excuses. is there a way to check if the employer is paying any employer NI or employee NI? The employer pays into family member's bank account so there is proof they are paid but it's impossible to check Tax and NI contributions without a pay slip as hours vary. Thanks

Hi,
The individual may set up a Personal Tax Account (PTA) which shows their National Insurance and Tax details.  
To set this up please go to:  Personal tax account: sign in or set up
Or they may wish to call our National Insurance Helpline on 0300 200 3500 – you could be there with them if needed.
The National Insurance Helpline will be able to check their National Insurance account to check if their employment is recorded and if National Insurance contributions have been paid.
Thank you.