Johannesburg – The repatriation of rally driver Gugu Zulu’s body to South Africa has been delayed, his family said on Wednesday."The family is not certain when he will be brought back home," family spokesperson Tseliso Motloheloa told News24. "The repatriation process is taking longer than we expected and we don’t want to speculate on when he will be home."A memorial service would still be held at the Kyalami race track next Tuesday. It would be open to the public.Zulu, 38, died while climbing Mount Kilimanjaro with the Trek4Mandela expedition on Sunday. He complained of "flu-like symptoms" while ascending with his wife Letshego and several other South Africans. They had hoped to reach the summit on Mandela Day, July 18. On Wednesday, there would be a requiem mass at St Mark’s Anglican church in North Riding, Motloheloa said. Zulu's fellow climbers and Nelson Mandela Foundation CEO Sello Hatang were expected to brief media at OR Tambo International Airport on Wednesday evening.Zulu would be laid to rest on July 28, but Motloheloa could not confirm where.This year's Trek4Mandela expedition was intended to create awareness of the problems facing impoverished girls in rural areas during menstruation. The expedition hoped to raise money to buy sanitary towels for needy girls across the country, to ensure they did not miss school.