Poor Customer Service

On the 10th of February 2018 I bought clothes from Airydress, I was promised that goods will be delivered in 11 days. The last email I received from them is the one indicating that they have received my payment and notifying me about the delivery. Realising that I'm not getting any communication from them I then tried to cancel the order on the 19th of February because I tracked my order and realised that there was no progress with it and I was promised a response within 24 hours but still I was never contacted. On the 24th I then wrote a message on Facebook messenger and only then they responded on my request to cancel my order and I was notified that two items were out of stock and my request was that can they forward what they have in stock and refund me what they don't have. I was promised that I will get an email in 24 hours notifying me about the progress but still I have not received any email from them. They even promised to prioritise my request she I communicated with them on Facebook messenger. I wrote to them again this morning and still I have not received any response from them and when trying to track my order the status is still the same as the one for the 10th. Today I indicated to them that can they please cancel my order and give me a full refund because I'm tired of waiting.