Thomas More consists of two different official instances, each of which has a different Erasmus code. The Erasmus code you will need will depend on the campus you will be studying at:
Thomas More Mechelen-Antwerpen: B MECHELE14
Campus Antwerp, De Nayer (Sint-Katelijne-Waver) and Mechelen
Thomas More Kempen: B GEEL07
Campus Lier, Geel, Vorselaar and Turnhout