If you’re thinking of sending back a disappointing gift you just received over the holidays, the return may bring even more disappointment.

Americans have grown accustomed to free returns, but a growing number of retailers are charging fees as returns squeeze retailers’ bottom lines.

Macy’s, Abercrombie, J. Crew, H&M and other companies have all added shipping fees for mail-in returns.

And it’s not just the big mall brands, either. Eighty-one precent of merchants are now charging a fee for at least some methods of returns, according to Happy Returns, a logistics company that specializes in returns.