Dishonest and no loyalty

I recently launched a complaint about by handset booked for repairs at Samsung mall of Africa, the feed back I got from Samsung regarding my concern was more unprofessional with the complain even escalated to the seniors. It appears Samsung has outsourced external repair technicians and the terms and conditions between the two parties clash. on the documentation I signed in Samsung store it is in clause that I shall make payment when my handset is repaired and this is upon collection, now their( Samsung 's technicians) work in different terms. I'm now being forced to pay before any repairs are made even after I paid the booking fee at drop off. there is no sense whatsoever in one paying for items before repairs are made and be forced again to put a blind eye on their very own terms and conditions. This is very poor service FROM SUCH A WELL KNOWN GLOBAL BRAND