Worst Online shopping experience

Ordered a heater on Sunday and that was the last I heard from them until I contacted them on Wednesday. Note order was to be delivered by Tuesday and nothing. Zero communication on the status of the order. Contacted them and gave order no, was promised a call back. 4 hours later Shihaam Marcus thought it was adequate feedback to call and tell me she cant get hold of the store on an overdue order and said she sent an email. All I could do was laugh in shock and horror. Thursday, still waiting on delivery.