No the phone doesn't have to be unopened but as far as the 30 days every store is different. Walmarts only allows a 15 day return policy on electronics, but some of the stores will allow 30 days for prepaid phones. Why I don't know... but you'd have to check yours.
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Officially, 30 Days. Can be opened, but packaging (and included materials and accessories) are required. Receipt is required. Redeemed airtime cannot be refunded. Phone must be in "like-new" condition.
Walmart most definitely has a 15 day max return policy on cell phones.
I purchased a ST r451c through Walmart.online. The sound quality, volume, ringer
were progressively unacceptable. I returned the phone to a brick and mortar Walmart on day 13 after the online purchase [ that is when the clock starts clicking].
I had cleared the phone of all data before hand...which in retrospect, voided the tel. # when I hit the reset button....tough lesson to learn.
I purchased a new LG 290c/ST and went online to shift the phone number and remaining minutes to the new number.That is when I discovered the tel.# had been voided.
I called Customer Service and to ST credit...they undid my over zealous housekeeping.
I had retained the minutes card and pin #, and they replaced the full 30 days/1000 minutes on the new LG290c and reassigned the tel. # to it.
It took about 30 min. I was ready to swallow the loss of the card, having read about all the horrible CS stories with ST, but truly this was a decent experience. I did call late at night and was directly connected after the maze of the voice menu. While I knew I was not speaking to a native English speaker, the representative was grammartically correct in our interchange, and the only 'give-a-way' was that she thanked me endlessly for using 'Straight Talc"....:-).
I returned an LG620G in trade for an LG290C because I couldn't get reception on the LG620G in one of the 2 zip codes that I travel between. I had the 620G for about 2 weeks. I returned it in the original box, with all of the accessories (without any issues). I purchased the LG290C at the same time. What I didn't realize though, is that when the phone gets 'scanned' back in as a return, it deactivates your number and it gets thrown back into the Straight Talk number pool.
Keep your previous phone's serial number and the number on your pre-paid card. When you do this, Straight Talk will re-apply your minutes (in full) to the new phone.
I think it depends on who's working and how busy they are as well. I just bought an iTouch back in August. 3 days ago the USB cable was no longer working. I went in, bought a new one (apple brand of course) packed up the old one and returned it. Lady never even checked or asked with what was wrong with it. I had bought the iTouch from Walmart anyway, and did nothing to the cable that it should have stopped working after 2 months. Doesn't matter... they get their money back no matter what.
But there have been other times when I've gotten a fussy employee who turns around to read the sign regarding policies. So as I said earlier... it all depends on the individual store.