Tevo benntte read hydro 15 vacuum cleaner

I bought a Bennett read hydro 15 vacuum cleaner 3 months ago, I went back recently to buy a sponge filter I was told they don't stock it so they asked for my name and number and phone number to get some one from tevos head office to phone till to this day which has been 2 weeks not one has phone or emailed. Me. I think this is very bad customer service from. Game and from tevo