I doubt that 48 can intercept your texts so you'll most likely have to wait until you can receive texts again if there's no other way to do the WhatsApp verification. Why can't you receive texts? Are you roaming in the EU on a membership other than Guido or roaming somewhere that 48 don't support? If necessary contact 48 support for more assistance.
Hope this helps.
I am not a 48 employee so if you need to contact 48 support then use option 3 or the chat facility here.