Brits are rushing to swap their old paper banknotes for new plastic ones - with long queues seen at the Bank of England.
Paper £10 and £5 banknotes have already been withdrawn, and cannot be spent in shops.
Paper £20 and £50 notes will be redundant from September 30, under a shake-up to tackle fake money.
These paper notes can be swapped for new polymer ones at the Bank of England, as well as high street banks and some Post Offices.
There is no deadline to swap old notes for new ones, but consumers are still rushing to swap them.
If you need to get old banknotes swapped on the same day, the Bank of England is your best bet.
However, the Bank has warned of long queues to swap these old notes.
A Bank of England statement said: "The Bank of England Counter is currently open from 9.30am to 3pm Monday to Friday and is experiencing very high demand.
"There will be long queues and you may encounter waiting times in excess of an hour.
"We would ask that you kindly consider the long wait times when travelling to the Bank to undertake an in person exchange - if you arrive after 2pm it is possible you may not get served before we close.
"Unless you require your banknotes immediately, we would suggest sending your banknotes via the post."
If you go to a Post Office from September 15, you can swap banknotes - but only at certain branches.
You can also only swap up to £300 in old banknotes.
Post Office branches that will exchange withdrawn notes
London
- Golders Green Post Office | Greater London | NW11 8RT
- High Holborn Post Office | Greater London | WC1V 7RL
- Moorgate Post Office | Greater London | EC2M 5TE
- The City of London Post Office | Greater London | EC3M 1AJ
- Regent Street St. James's Post Office | Greater London | SW1Y 4LR
Northern Ireland
- Belfast City Post Office | County Antrim | BT1 1LT
- Londonderry Post Office | County Londonderry | BT48 6AA
Scotland
- Edinburgh City Post Office | Midlothian | EH1 1BQ
- Glasgow Post Office | Strathclyde | G1 2RD
- Inverness Post Office | Inverness-shire | IV1 1AX
North East
- Middlesbrough Post Office | North Yorkshire | TS1 2NR
- Newcastle Upon Tyne Post Office | Tyne and Wear | NE1 7DE
North West
- Carlisle Post Office | Cumbria | CA3 8JY
- Manchester Post Office | Greater Manchester | M2 1BB
- Breck Road Post Office | Merseyside | L5 6SW
Yorkshire and Humber
- Sheffield City Post Office | South Yorkshire | S1 2AX
- York Post Office | North Yorkshire | YO1 9QL
- The Markets Post Office | West Yorkshire | LS2 7DZ
Midlands
- Birmingham Post Office | West Midlands | B2 4AA
- Nottingham Post Office | Nottinghamshire | NG1 3QD
East of England
- Cambridge City Post Office | Cambridgeshire | CB2 3BZ
- Norwich Post Office | Norfolk | NR1 3QP
Wales
- Wrexham Post Office | Clwyd | LL11 1BE
- Cardiff Post Office | South Glamorgan | CF10 2NX
South West
- Bournemouth Post Office | Dorset | BH1 1DY
- Bristol Post Office | City Of Bristol | BS1 3XB
- Mutley Post Office | Devon | PL4 6LL
South East
- Oxford Post Office | Oxfordshire | OX1 1ZZ
- Melville Road Post Office | East Sussex | BN3 1UB
- Portsmouth Post Office | Hampshire | PO1 1AB