Still waiting for refund from PC Link Computers

I am still waiting for a refund on an order that PC Link Computers has failed to fulfil, on the basis of unavailable stock at their overseas supplier.

On 8 March 2022, I ordered a "Battery Replacement for BlackBerry BBF100-1". The site indicated stock: "IN STOCK At Supplier , Delivery Is Estimated 10 - 25 Working Days."

However, as time went by, it became apparent that no battery was imminent. On 11 April, the support agent of PC Link offered a refund: "Kindly note that the supplier does not have stock of the required item Therefore we will be processing a refund for the stock I do apologize for any inconvenience caused"

Well, more time has gone by and no refund is in sight. I have prompted once (24 April) for an update on the refund status, but only receive a terse reply without any detail on when or hold-ups, etc.

Now, I have written a final notice of enquiry to PC Link, indicating that legal action for damages will follow after 31 May 2022, should not refund transpire.