I want to cancel my request for the PS-desktop-application (dutch)

I want to cancel my request for the PS-desktop-application

I needed to quickly make smt 4 work so I used the web-version of PS.
I saw that there was a possibility to have a desktop version so I pushed the 'request acces' (NL: 'Toegang aanvragen')

I now wish to cancel that request but I can't find it.
(also my boss is getting spammed about this request :s )

HELP