Best Dress (Online Shopping) - Using the lockdown as an excuse not to deliver

I feel like I have been messed around by this company who have used the lockdown limitations as an excuse not to deliver my order.

I placed an order on 20 February 2020. As per the shipping policy of 14-28 days, I should have received my order on 31 March. On 31 March, I was advised that my parcel will be kept in their warehouse until after the lockdown, which I understood.

On 30 April, they told me that "my order is already on it's way to me", which I did not receive to date.

On 05 May, they told me "my order will arrive after one month". After first telling me that the order is on its way.

On 18 May, I sent them an email to which I received no response, 4 days later I sent another email and still no reply, another 5 working days later I followed up again and still no communication about my order. Courier services have been trading for weeks already, I have been quite understanding and patient but I am being messed around.