Upgrade TY01 to TK01 (free Modem Choice)

I will start a new 1Gbps fiber connection with KPN, but still have the older TY01 FTU installed. Under the Dutch free modem choice law (vrije modemkeuze), I would like to use my own Fritz!Box Fiber in the future, which requires a TK01 FTU. 

Is it possible to arrange a free technician visit to replace the TY01 with a TK01?"