KFC India — Not accepting sodexo cards

Address:

KFC, G1, G2, Ground Floor, Eternity Mall, Variety Square, Sitabuldi, Nagpur, Maharashtra 440012

KFC claims that they accept food coupons like Sodexo and sodexo claims that their card is accepted by KFC and other registered merchants. I was very hungry and was running out of money but then I thought that I have sodexo which is already topped up, so I need not to worry, hence I visited KFC in Eternity mall Nagpur, Maharashtra. They gave the statement that sodexo is not accepted, our machine is not supported. I asked them to give this in writing that they do not accept sodexo but they denied doing so. Simply fooling customers. I visited this shop a number of times and whenever I ask them if sodexo will be accepted or not, every time they say no. If they cannot follow common standards which a company like KFC claims, how are they eligible to still hold such a big franchise and run their outlets. This is happening quite frequently nowadays, many merchants refuse to accept such cards and fool consumers. However, if questioned or asked to give this in writing they start accepting cards, this happened recently with Dominos too.
Sodexo is a prepaid card granted by organisations for their employees to use as a food voucher but merchants do not accept it, so what is the use of such cards, why my organisation is paying to such companies.