BAD SERVICE

I took a bed and a headboard from Sleepmasters about 2 months ago. Both headboard and the mattress are torn because of poor quality. A complaint was logged for me but to date they have been ignoring me. I have to call them to follow up and all I get is empty promises. My worry is that they debit my account because I agreed to a debicheck. How can I stop this debit or how can I make them come take their stuff and at least replace them with with new goods?