Your annuity provider (not Capita) will issue your payslips and P60s.
Payslips show your gross payment, tax deduction, and net amount received.
P60s, issued every April, show your total annuity income and the total tax paid in the year. You may need this for tax returns, applying for financial products, or claiming benefits.
If you've opted for paper communication, these documents may be posted to you - check with your provider.