Bought an item then seller told me it was incorrectly advertised

[keithedinburgh18]

I saw a DJI Mini 4 Pro and bought it as below for £255 Inc postage.

Thought I'd git a bargain only to get a message from the seller saying he'd incorrectly advertised it. Should have been a dji 4k model. But photos on listing show its a mini 4 pro?

What can I do?

Thanks Keith 

DJI Mini 4 Pro Camera Drone (with RC 2 Remote)

£250.00
Unit price £250.00

Item number: 176735413747

Returns not accepted.

[plum993]

If the item has not been posted the seller could cancel the transaction,otherwise if it has been posted,you would need to report item not as described once you receive it,and seller should supply you with a pre-paid return label.

If you were to get no label or refund,you escalate the open case to ebay within 30 days of opening for a refund