Validation can be problematic for local recognition. For doctoral programs, some evaluation services want to see copy of dissertation and copy of university catalog for consideration. If you complete your doctorate with a private company X in Africa, you will not be able to provide a dissertation signed by UNEM faculty. Some even want to see records of defense. At least in Europe, you will have a hard time getting this degree recognized because the barriers of being a validated degree. I went through this process in Spain, I noticed UNEM being listed in the recognized list of Universities but I also noticed all the above requirements that might make it difficult to get a validated degree recognized. I got recognized a credential from Canada and Australia but the same would apply to Costa Rica.