Everytime I offer someone a cultural goods treaty, when he/she replies the message said it was cancelled and he would say inside the message something like: "thanks"; "have four slots left"; "I need to fill up my slots, thank you very much". Are they f*ck*n' playin' with me or what????

Why are members with even points higher than mine like this????
P.S. Don't they know how to accept a cultural treaty offer?
P.S.S. BTW don't know how to use excel, when I try to input the word town it consumes 2 bars/boxes. I can't adjust the size of each box. [I thought it was something like a graph or something?]
P.S.S.S. Sorry for the words, promise not to use it again, just really pissed off.
P.S.S.S.S. Is this a bug?