What is Reddit's opinion of MileagePlus X?

From 3.5 billion Reddit comments

u/atinge said "make a purchase in the app" -> is referring to the MileagePlus X app (iOS / Android). Buy a gift card and miles usually post pretty much immediately

Try buying the credit from elsewhere. If you are in the United States, grocery stores should allow you to buy it there. I've bought at Ralph's or Vons before. I'm sure Safeway, etc are all okay too.

Try the paypaldigitalgifts seller from eBay although they usually take up to a few hours to send you the code. http://www.ebay.com/itm/Google-Play-Gift-Code-25-50-100-Fast-email-delivery-/252368684575

Try an outside vendor like the MileagePlus X app from United that also sells it. The code is sent instantly, plus you'll get a small amount of miles for it. Other airlines also have something similar. https://play.google.com/store/apps/details?id=com.united.mpx.app&hl=en

If these also fail, it would be an issue with your credit card company. Call them.

Heare are some that I've used (no referral links):

Shopping Portal: https://shopping.mileageplus.com

MileagePlus X (Gift Cards you can buy in real time and use to pay at some stores): https://itunes.apple.com/us/app/mileageplus-x/id928624751?mt=8 (iPhone)

https://play.google.com/store/apps/details?id=com.united.mpx.app&hl=en (android)

Hertz rentals: https://www.united.com/CMS/en-US/products/travelproducts/car/pages/hertzoffer.aspx

Filling out surveys: https://www.opinionmilesclub.com/general/omc-lp-600

Marriott RewardsPlus (United Status if Marriott Platinum, better exchange rates, etc.): https://www.mrrewardsplus.com/en_US/

https://play.google.com/store/apps/details?id=com.united.mpx.app&hl=en