Poor service and no response to queries

I made a purchase on the 3rd of November 2022. I went into the website in the early morning of the 4th of November 2022 to check the status of my orders. On the 5th of November I saw the message their web page is displaying. I have a lot of orders outstanding with them. Earlier in the year they were going to deliver a lot of items but the courier driver forgot my order's paperwork so he did not make the delivery. The following day the courier van was hijacked. Raru reordered the ****** items. They hardly ever meet their delivery times. They always blamed Covid-19 for their slack delivery times. A few months ago I created a spreadsheet with all the outstanding items, one of which I ordered in January 2021. On Saturday I sent them an email requesting an update on the status of my outstanding orders. I have not received a reply. I am still receiving daily emails advising me of out-of-stock items that are now in stock.