They have no system

I am a capfin customer and my experience was actually good until last week the 24th August 2017 . I have app**** for a loan a month and half ago and was approved of R2000 I excepted the terms of the loan and well paid it off full in a settlement amount of 2500 or so then I took a second loan and freed it also within a 15 day period and then took a third loan and did the same how ever the only reason I did that three loans was because the adverts state if you pay your account regularly you may qualify for me . However according to the system they use based on affordablity they say I only qualify for 2000 nothing more I spoke to more than 10 different consultants that say they need to update my salary and affordablity and it's been now an entire week and no feel back I still only qualify for 2000 with them my question is if I was able to pay 2400 every 15 days just to boost my credit rating with capfin surely I can qualify for a higher loan with capfin it's basic logic . They claim that if you pay well you will qualify for more but to me it's just a joke to them coz you actually don't you just waiting for them to keep calling and only to find out you don't qualify for more I never rate them because they need to buck up.