SPANISH police investigating the circumstances surrounding Jodie Nieman's death made nine arrests last week. Although police are certain the Kenley beautician died from a heart attack, it is not clear whether her death was drug-related. MISSED: Jodie Nieman An investigation has been launched into drugs supply in Ibiza and police announced last Thursday that they had arrested nine men after seizing cocaine, thousands of ecstasy pills, steroids and laboratory equipment. One of the men is from Croydon but it is not suggested Ms Nieman, who died just days before her 20th birthday on July 15, knew him. The former nail technician's mother Debbie, of Waterbourne Way, Kenley, said she was "disappointed and angry" Spanish police had linked the arrests with her daughter. She said: "We still don't know if Jodie took any pills. The doctor in Ibiza said they weren't told she had taken any tablets. "Until we have results saying she took any drugs, we just don't know and it is upsetting because we are still waiting on tests." Spanish police said most of the pills found are known as Pink Rock Star, similar to those thought to have caused the death of Ms Nieman and the poisoning of others in July, officers added. The UK's Serious Organised Crime Agency took part in the operation against a mostly-British gang which travelled to Ibiza to feed the demand from the summer influx of clubbers. Detectives arrested five British men, including a 39-year-old from Croydon, three from Ireland and one from Poland. They were being questioned by officers from the Guardia Civil on suspicion of various drugs offences. The former Riddlesdown student was just three days into her holiday when she had a heart attack on a night out at the Space club in the Playa d'en Bossa resort. The teenager's funeral took place at Croydon Crematorium on August 16. Mum Debbie said her 19-year-old daughter was a "stylish princess" who would defend her friends to the end. Ms Nieman added: "She had champagne on the plane over and it came in a plastic glass – Jodie just said: 'Who has champagne in a plastic glass?' "That was just Jodie. Every day another person tells me they knew Jodie and they went to the funeral. I didn't know she was so loved."