Impossible to purchase a filter for Hoover vacuum

I purchased a Hoover power 5 pet hc85-p5p-za vacuum cleaner a year ago and the pre filter now needs replacement. When I initially purchased it, I was concerned about the availability of the filters but was assured by the staff at Makro in Strubensvalley that they stocked it and I wouldn't have a problem when the filters needed replacing. Now Makro no longer stocks the filters and I was told that i should contact the Hoover head office who would be able to courier the filters to me. I've spoken with 3 different people and emailed for a quote but have been informed that their systems have been down since the beginning of the year and that they are unable to provide a quote until the system is back up (nobody has any idea when this will be). The result - my vacuum has to be thrown away as it cant be used without a filter. To anybody who is looking to buy a vacuum cleaner, stay away from Hoover - their filters seems impossible to purchase.