I got the Wally World and Amazon cards the same day in June 2016. Walmart was given at $400 and Amazon was at $800.
What had happened was...I wanted to make a large purchase on Amazon yesterday to take advantage of the 0% for 12 months. I've never charged more than $100 at a time on either card, and always PIF at the end of the week or whatever...ALWAYS before the cycle ends.
Called up Synchrony (Amazon) and asked for $3K. Guy on the phone declined it, but I asked to be transferred over to a credit specialist. 5 minutes later, BAM! $3K on Amazon. So while I had the lady on the phone I inquired if I could increase WalMart as well. 2 minutes later, lightening stuck again, BAAAM! $2.8K.
I really dont know how I could possibly need $2800 at WalMart, but I'll take it! Keep the faith strong and the utilization down. Synchrony has been generous to me and has opened some great doors for my weary, credit-challenged self.