Site: Walmartafter I choose my time slot it keeps saying unable to process. I've tried picking different times and days but still says the same thing. Screenshot: Add new comment Comments Why can't I check out??????????? reply Add new comment Your name * E-mail * The content of this field is kept private and will not be shown publicly. Comment * Notify me when new comments are posted n7GT3e Enter the code above * Enter the code without spaces.