New figures on the take up of Pension Credit show that 1058 pensioners in Bristol West constituency are missing out on money that is rightfully theirs.
"In the short term, I hope everyone who is unsure about their entitlements rings the Pension Service helpline to find out if they are missing out.
"In the long term, we need to provide pensioners with a decent pension that isn't falling further and further below the poverty line each year."
The Pension Credit is a means-tested benefit for people over 60 with low incomes. It ensures that an individual doesn't live on less than £109.45 a week, and a couple on less than £167.05 a week.
Calls to the Pension Credit application line are freephone: 0800 99 1234. Lines are open Monday to Friday between 8am - 8pm and Saturdays 9am - 1pm