Not sure what you exactly mean by a qualification.   There are some universities who provide on line training, almost like a mini masters degree in the craft of business analysis.  

I think University of Villanova has an offering along with a few of the other east coast Universities.  You get a formalized certificate after you complete 2 - 3 classes I believe.  Not sure of the price, but you could get some additional resume fodder along with some training.  

HTH

Most of those courses, from what I can tell, align with IIBA or CMMI or some other governing body / framework.  Just as the collegiate project management courses usually align with PMI here in the states, I am assuming Prince 2 in other countries.  

They have some really neat courses on line, however I am pretty thrifty and back about 5 years ago went crazy and spent about 5,000 on ITIL and PMI certifications.  Now I am very adverse to certificates and function more on the technical side of things.  

Either way good luck, hopefully you find something that aligns.  

I would try to find some free on line training, maybe reach out to a vendor who provides training and see if they will let you sit for a course for free.  Tell them you are interested but you want to try before you buy.  Just saying......  ;)