My client just called and wants to change the date of reciving his cake. He was supposed to come to pick the cake tomorrow, now he wants to come on April 25th. The problem is, that I've alreday prepared the cake: I put some whipped cream with peaches inside, and I covered the top and sides with buttercream. Tomorrow moring I was going to decorate it with fondant. My question is: can I put this cake to the freezer, take it out on April 24th and then decorate? I just hope that nothing will melt or something... Thank you for your advice! (Grrrr, this whole situation made me really angry.)

Not sure how the filling is going to fare
Try taking a slice of peach in a bit of whipping cream and fz ita few hours to see how it will thaw out.
Explain to customer it's his problem - the filling might make the cake mushy
I've never used fresh fruit - except sliced banana which cannot be fzn - as filling so not sure how it's going to work out for you. If the peaches were/are canned I think it might be o.k. If they are fresh don't think it will.

I am not sure that I would freeze that one.

The peaches are canned, they're not fresh... I'm also afraid what will happen with frozen whipped cream after defrosting. Although I've frozen a lot of different cakes and they were all more or less OK. But they were for me, this cake is for a client. Damm...He just wrote "Let's try to freeze it" and I wrote, that I can't guarantee that te cake will be 100% ok. I guess I will have to try after all. I'm deffinitely NOT going to do this again, moreover, this cake is made of gluten- free flour, which is expensive.

Then it is all on him if there is a problem.