I'm trying to order photo's from Walmart on line.Last night I was able to order the photo's.?

However,thuis morning I went to reorder more and I'm a able to choose the photo's,and number of photo's,also add the pick up person as well as how to pay,but when it comes to filling out the information on who the person is that will pay,it will not let me fill in nthe information it reverts back to my desktop.I have tried at least 15 times no luck.I called Walmart photo department,and the nperson I spoke with said to come in the store and order.That is the point of ordering online so I don't have to go to the store.What can the issue be??????I have ordered online numerous times in the past and never had this issue.I'm not a computer geek so I need detailed instructions on what to do Thanks in advance for help.