Easy and simple, but my old address was on the Google pay site and it took a while for me to find my new address--420 East 61st St., apt. 28F, NYC, NY --NOT 420 East 54th Street! Also, since I'm a bit technologically challenged, I didn't even know what google pay was. Usually, when I buy something, my right address and credit card number pops up and I'm set to go. I love your product, however, and can't wait to get it and if I order more stuff, I know it will be a lot easier. I'm totally in love with your products! Haven't gotten the lamps yet, so I can't answer the other questions. 5 Stars!