Voluntary National Insurance Contribution (Overseas letter)

Hello, every year I get a letter that instructs me how much I should pay towards my class 2 contributions for the year. Unfortunately my letter this year got thrown out by the other half before I had chance to read it. How would I go about requesting a new one, is there a way to access the letter online? (I tried on 'my messages' when I signed into Gov UK but no joy. I just need the instructions on how to make the repayment (the bank transfer instructions). I know the letter details this. Any help with be great!

Hi,
Please contact HMRC by phone and we will be able to issue you out another payment request.
Number
0300 200 3500
Text Relay
18001 0300 200 3500 (Text Relay)
Overseas
+44 191 203 7010
Open
Monday to Friday: 8am to 6pm
Closed on Saturdays, Sundays and Bank Holidays.
Web Address
www.hmrc.gov.uk/ni
Thank you.