Fortnum and Mason – Food shop and carries a royal warrent (The Queen uses the shop)
Nearest tube line Piccadilly Circus
Fortnum and masons is a really good shop if you want to see a very upper class shop it is very elaboratly decorated and the staircase has been preserved since it opened in 1707.

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Harrods
- UK’s Largest department store
- Has many upscale clothing designers e.g. Emporio Armani and many more.
- It also has a food hall

Note: It is asked that you dress in appropiate clothing whilst shopping at harrods (no ripped jeans or offensive tops)

Nearest tube station: Knightsbridge
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Oxford Street
Tube stations: Mable Arch, Oxford circus, Bond street

Is home to many upscale shops including many department stores like selfridges (Nearest tube station: Marble Arch)
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I only live 30mins from london so I regularly visit these shops and i hope it is what you are looking for.