it really is ymmv. 

i mean best buy doesnt really do cli. but i used 200 dollars on my walmart card in 4 months. pif same month (sept) and asked for a cli and they gave me 800 to 3k. 

so anything is possible. 

ive put through about 5-600 on my ge american eagle card. and they denied my cli. account is about two weeks newer then walmart. (opened since mid july)

Current: EQ FICO 690, TU FICO 692, Walmart TU 737 EX FICO 726 Amex Pull(1/1/13) Starting total revolving credit: $2600 | Current total revolving credit: $21,600 Inquiries (12 Months): EQ 6 TU 4 EX 5 | Most Recent: 8/30/2012

2013 Goals: Freedom Signature Costco:True Earnings

Amex Zync(Unicorn) Chase Freedom$1500 Citizens Mastercard$5000