It'll only let you use the code once yourself..but can be used multiple times by others. You just have to do a different transaction per code you use also
DVDKROG - dvd at Kroger
DVDATMAC – Free rental at McDonalds only.
DVDATSONI – Free Reantal at Redbox locations inside Sonic.
REDBOX – Get a free rental for new customer only.
7MBLE2 - Free rental, Redbox locations inside Meijer only.
WALMART – Get a free rental at Walmart.
MEJER78 - One free rental at Meijer.
REDBOXHEB - Get a free rental at Heb.
GAMEFAN1 - A new free rental code.
DVDATWEG - Free rental at Wegman’s.
Last I read, they had around 40 shipping hubs. Some states like fl, ny, ca had like 6-7 centers each. I can see less populated states seeing increased shipping times. Heck, if postage prices continue to rise, and rental #s increase, that only cuts into profits. They may not keep the 8 buck pricing.
You could rent approximately 7 DVDs a month if you had 1 day transit times to/from them. They don't ship weekends. I'd imagine next to no customers fit that scenario.