No worries mate, not off topic its a good relevant question
I just bought a nice couple of shirts from MnS and bfore I get slated, they were about £60 a shirt (white formal and pink formal) and they are such top quality it's bloody great lol. I know MnS... brand / image bla bla but if it's a good fitting shirt and you feel good in it, who cares where it's from lol and I'm only 25, lol.
Other than that, try Moss Bros (online mainly) - super quality and great prices... just bought my ted baker suit and it fits like a dream! Half the price of the Richard James yet fit and feel is much more superior and comfortable - again from MOSS Bros.