If not returning then the cut of old plug and fit British is clearly best option if for no other reason than the Schuko plug is reversible which is why Schuko sockets are not permitted in the UK.
Am I missing something here?
Is there not something in the regs about harmonization with member states?
I do a fair bit of work within the AV industry and a very high proportion of new kit comes with Shuko, or other foreign, plugs so it is becoming fairly common to be fitting Shuko sockets.
We have certainly been fitting Shuko sockets as standard for some time into situations where there is a high likelihood of foreign visitors such as news reporters.
edit yes of course we fit DP OCD