Shrink in Pasta Mania's Pizza?

Played MJ at my friend's place during Chinese New Year...

In the evening we ordered... Pizzas from Pasta Mania thru' delivery...
and we came to realise that the pizza were abit small.
And my friend took a measuring tape and it was as shown in the picture.

It was supposed be 10 inches.

But look at this... this is only about 8" ?

Anyway... nothing much. Jus sharing ...

Do you encounter the same thing?
Do u think its okie?
Or should we complain?

Feel free to air your views. :)