Restonic bed

I bought a Restonic bed from Hi Fi Online,last year,the metals are coming out and damaging my bedding and blankets I logged a call with Hi Fi in April to date still they cannot be able to give me proper feedback of what’s going on as the bed is still under warranty,one of their staff he contacted me once and sent me email and he said if I want to follow up or get any update on the query I must call him but I have been calling and emailing him they just ignore me,I used to think that Restonic they manufacture quality but I was proven wrong,both service from Hi Fi and Restonic is so very very bad and frustrating,I really regret buying form this shop and this product