In addition to being included in the South Africa Schools side in 2011, he was also included in a South Africa Under-20 training squad, but later ruled himself out of selection for the 2013 IRB Junior World Championship. Under IRB rules, playing for the S.A. Under-20 team would have made him ineligible to play for another international team, but as a British passport holder, Swiel wanted to keep his options open and did not yet want to commit his long-term international future to South Africa.