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You might see a bump. Ideally, you want two of your CCs to report $0 with the remaining to report under 9%, versus 10%. There's no way to guess a score change, however if you let us know the CL of the $0 balance BofA, we can take a stab at it.
Keep GWing over and over and over. Target additional letters to the Pres/CEO of the CA. Try also planetfeedback.com. That may work if the CA is more well-known. Ramp up your efforts w/ the GWs and blitz them via e-mail, mail, fax, etc.
Are all 4 payday loans thru the same OC?? Did they all go to collections? And to the same CA??
And...are they all currently PIF?
Also...you will want more than just your EQ report. If you have not gotten your 3 free reports during the last 12 mos...go to the free report link in my sig block. You need to know what is reporting on all 3. Also..EQ is the only one that will sell you a real FICO from their linked site below. Check my 3 FICO links to get a TU FICO, and nowhere can you purchase an EX FICO. They stopped selling them to the consumer.