Best place for bra fitting in central-ish London

[ridinghighinapril]

I have a rare opportunity to go shopping after work without having to dash back to collect DC and new bras are at the top of my list.

I need at least two new bras so I don't want to be financially crippled by the end of it.
More t-shirt bras than a full-on lacy number.
Any recommendations as to where I can go for a fitting in central London?
Thanks

Bravissimo - there's one in Covent Garden and another just near Oxford Street

Rugby and peller on conduit street. But pricey though.
Bravissimo: Covent Garden and near Oxford Circus
John Lewis Oxford street

Google for full addresses.

Book a fitting if you go to bravissimo: telephone numbers on their website.

John Lewis Oxf St.

Thanks all - I will give bravissimo and JL a try. Rigby and Peller is out of my budget for every day bras

Definitely Rigby and Peller every time.

Bravissimo (but check if the branded bras are cheaper at john lewis which is just 2 mins away)

John Lewis on Oxford Street, you'll also be better off calling and making an appointment so you don't have to wait.