Instruct: Classify the given Amazon review as either positive or negative.
Query: Prepare for a rocky "switch-over" process

This is the second time I've renewed my Cingular 2 yr contract thru Amazon. The first time went okay, but this time there was problems.Typically, the way it is supposed to happen is that your current phone will be working up to until you receive your new phone from Amazon. Well somehow, my phone was switched off 4 days before I got my new phone.It was more than an inconvenience because it was the 4 days during the Thanksgiving holidays and the cell phone is my only phone.I called Cingular and they basically said we're sorry Amazon screwed up but they couldn't help me. Amazon refunded my shipping charge and thats all I got for the headache.