Does not want to exchange a gift

I am 8 and a half months pregnant and I am getting gifts from various people. My first baby shower was at work from which I got gifts and had to exchange by Jet without a slip or a tag attached. She said they cannot do it without any tag on but she will help this time. Fine, then with my second baby shower I also got a denim type of pants which I do not want but this had a price tag on and I send my friend again to go and exchange and just put it on a gift card since its getting difficult for me to move around and go look for something else in its place. She was so sarcastic and said but she cant do it, and while my friend was standing in the shop I wanted to speak to her and say but this is not what she said the last time and then she came with the attitude of no she will not speak to me over the phone, she cannot do it again.... very rude woman!!!!! and not even open for a debate of which I feel there is nothing wrong in exchanging an item wit a tag attached. I don't even want money back since I know you cannot do it without proof of purchase... Other stores you get better service than there and I doubt I would ever shop there again.... PATHETIC