NI class 3 payment update times

Paid for 3 years NI class 3 contributions last week, this should have brought my final pension to approx £218. 3 years have been credited to NI page but final pension is only showing approx £211, which is for 2 years. Do the years update separately or should I ring future Pensions. Thanks in advance for your help

Hi Gary,
If you call our National Insurance Helpline on 0300 200 3500 (from the UK) or +44 191 2037010 (from overseas), they will be able to arrange for your payment of voluntary National Insurance contributions to be allocated correctly.  
Sorry for any inconvenience caused.
Thank you.