Poor service SLEEPMASTERS

I bought a bed at sleepmasters Mitchells Plain Town Centre on Thursday then I was they told me it will be delivered Saturday. Today Monday I am still waiting no one called me I had to them they then told me it will be delivered tomorow Tuesday will be the latest then I reacieved a call same day this lady told me that they will do my delivery on Wednesday. I just told her if the can not do my delivery tomorow then they can just cancel it she said they will cancel it.